2021 US Open – Men's singles

Men's singles
Men's singles
2021 US Open
Final
Champion	Daniil Medvedev
Runner-up	Novak Djokovic
Score	6–4, 6–4, 6–4
Details
Draw	128 (16 Q / 8 WC )
Seeds	32
Events

Daniil Medvedev defeated Novak Djokovic in the final, 6–4, 6–4, 6–4 to win the men's singles tennis title at the 2021 US Open.^[1] It was his first major title. Medvedev became the third Russian man, after Yevgeny Kafelnikov and Marat Safin, to win a major singles title, and the first to do so since Safin at the 2005 Australian Open. He lost just one set during the tournament, against Botic van de Zandschulp in the quarterfinals. Djokovic was aiming to become the second man in the Open Era, after Rod Laver in 1969, to complete the Grand Slam.^[2] He was also attempting to win an outright record 21st major singles title and surpass his Big Three counterparts, Roger Federer and Rafael Nadal.^[2] By reaching the final, Djokovic tied Federer's record of 31 men's singles major finals contested, and repeated his 2015 achievement of contesting the maximum-possible 28 major singles matches in a season. This marked Djokovic's record sixth runner-up finish at the event.

Dominic Thiem was the reigning champion, but did not participate due to an ongoing wrist injury.^[3]

By defeating world No. 3 Stefanos Tsitsipas in the third round, Carlos Alcaraz became the youngest man to beat a top 3 ranked-player in singles at the US Open since the inception of the ATP rankings in 1973. He became the youngest male quarterfinalist at a singles major since Michael Chang at the 1989 French Open, and the youngest at the US Open in the Open Era; he would go on to win the title the following year.^[4] Van de Zandschulp became the first Dutchman to reach a singles major quarterfinal since Sjeng Schalken at the 2004 Wimbledon Championships and the first qualifier to do so at the US Open since Gilles Müller in 2008.^[5]^[6]

Seeds

01.

Novak Djokovic (final)

02. Daniil Medvedev (champion)

03.

Stefanos Tsitsipas (third round)

04.

Alexander Zverev (semifinals)

05.

Andrey Rublev (third round)

06.

Matteo Berrettini (quarterfinals)

07.

Denis Shapovalov (third round)

08.

Casper Ruud (second round)

09.

Pablo Carreño Busta (first round)

10.

Hubert Hurkacz (second round)

11.

Diego Schwartzman (fourth round)

12.

Félix Auger-Aliassime (semifinals)

13.

Jannik Sinner (fourth round)

14.

Alex de Minaur (first round)

15.

Grigor Dimitrov (second round, retired)

16.

Cristian Garín (second round)

17.

Gaël Monfils (third round)

18.

Roberto Bautista Agut (third round)

19.

John Isner (first round)

20.

Lorenzo Sonego (first round)

21.

Aslan Karatsev (third round)

22.

Reilly Opelka (fourth round)

23.

Ugo Humbert (first round)

24.

Daniel Evans (fourth round)

25.

Karen Khachanov (first round)

26.

Cameron Norrie (first round)

27.

David Goffin (first round)

28.

Fabio Fognini (first round)

29.

Alejandro Davidovich Fokina (first round)

30.

Marin Čilić (first round, retired)

31.

Alexander Bublik (second round)

32.

Filip Krajinović (first round)

Click on the seed number of a player to go to their draw section.

Draw

Key

Finals

Quarterfinals						Semifinals							Final

1	Novak Djokovic	5	6	6	6

6	Matteo Berrettini	7	2	2	3
						1	Novak Djokovic	4	6	6	4	6

						4	Alexander Zverev	6	2	4	6	2
4	Alexander Zverev	7⁸	6	6

	Lloyd Harris	6⁶	3	4
													1	Novak Djokovic	4	4	4

													2	Daniil Medvedev	6	6	6
12	Félix Auger-Aliassime	6	3

	Carlos Alcaraz	3	1^r
						12	Félix Auger-Aliassime	4	5	2

						2	Daniil Medvedev	6	7	6
Q	Botic van de Zandschulp	3	0	6	5

2	Daniil Medvedev	6	6	4	7

Top half

Section 1

First round							Second round							Third round							Fourth round

1	N Djokovic	6	6⁵	6	6
Q	H Rune	1	7⁷	2	1		1	N Djokovic	6	6	6
	T Griekspoor	2	7⁷	4	6	7		T Griekspoor	2	3	2
	J-L Struff	6	6³	6	4	5								1	N Djokovic	6⁴	6	6	6
	S Caruso	1	1	7	3										K Nishikori	7⁷	3	3	2
	K Nishikori	6	6	5	6			K Nishikori	7⁷	6	6⁵	2	6
	M McDonald	6	7	6				M McDonald	6³	3	7⁷	6	3
27	D Goffin	2	5	3																	1	N Djokovic	1	6	6	6
21	A Karatsev	7	1	6	6																WC	J Brooksby	6	3	2	2
	J Munar	5	6	3	2		21	A Karatsev	3	3	7	7¹¹	6
	J Thompson	4	6	7	2	7⁷		J Thompson	6	6	5	6⁹	1
	G Mager	6	3	5	6	6³								21	A Karatsev	2	6	6	3	3
WC	J Brooksby	7	6	5	6									WC	J Brooksby	6	3	2	6	6
	M Ymer	5	2	7	3		WC	J Brooksby	6⁷	7¹²	7	6
	T Fritz	7⁷	6	1	6			T Fritz	7⁹	6¹⁰	5	2
14	A de Minaur	6⁴	2	6	4

Section 2

First round							Second round						Third round							Fourth round

10	H Hurkacz	6	6	6
	E Gerasimov	3	4	3			10	H Hurkacz	6	4	4	6⁶
	A Seppi	2	7	6	2	7¹⁵		A Seppi	2	6	6	7⁸
	M Fucsovics	6	5	4	6	6¹³								A Seppi	3	4	6	5
	D Kudla	4	6	7	7⁷								Q	O Otte	6	6	2	7
	L Djere	6	3	5	6⁴			D Kudla	4	4	2
Q	O Otte	6⁸	7	7⁷	7⁷		Q	O Otte	6	6	6
20	L Sonego	7¹⁰	5	6⁴	6¹															Q	O Otte	4	6	3	2
28	F Fognini	6	6	1	3	6⁴														6	M Berrettini	6	3	6	6
	V Pospisil	2	3	6	6	7⁷		V Pospisil	3	4	6⁵
	T Sandgren	6³	3	4				I Ivashka	6	6	7⁷
	I Ivashka	7⁷	6	6										I Ivashka	7⁷	2	4	6	3
	C Moutet	6	7	7⁷									6	M Berrettini	6⁵	6	6	2	6
	S Travaglia	4	5	6³				C Moutet	6²	6	4	3
	J Chardy	6⁵	6⁷	3			6	M Berrettini	7⁷	4	6	6
6	M Berrettini	7⁷	7⁹	6

Section 3

First round							Second round							Third round							Fourth round

4	A Zverev	6	7	6
	S Querrey	4	5	2			4	A Zverev	6	6	6
	A Ramos Viñolas	6	5	5	7	6		A Ramos Viñolas	1	0	3
	L Pouille	1	7	7	5	4								4	A Zverev	3	6	6	2
	Y Nishioka	7⁷	2	4	2									WC	J Sock	6	2	3	1^r
WC	J Sock	6⁵	6	6	6		WC	J Sock	7⁷	6²	6	4	6
	Y Hanfmann	0	6	2	1		31	A Bublik	6³	7⁷	4	6	3
31	A Bublik	6	4	6	6																4	A Zverev	6	6	7⁹
17	G Monfils	6	6	6																	13	J Sinner	4	4	6⁷
	F Coria	3	2	2			17	G Monfils	7	4	6	6
	S Johnson	5	7¹⁰	7¹⁰	6			S Johnson	5	6	4	4
Q	M Marterer	7	6⁸	6⁸	3									17	G Monfils	6¹	2	6	6	4
	M Cecchinato	6⁶	7	4	4									13	J Sinner	7⁷	6	4	4	6
WC	Z Svajda	7⁸	5	6	6		WC	Z Svajda	3	6²	7⁸	4
WC	M Purcell	4	2	6	2		13	J Sinner	6	7⁷	6⁶	6
13	J Sinner	6	6	4	6

Section 4

First round							Second round					Third round					Fourth round

9	P Carreño Busta	7	6	1	4	6⁷
Q	M Cressy	5	4	6	6	7⁹	Q	M Cressy	6³	3	5
	S Korda	2	1^r					N Basilashvili	7⁷	6	7
	N Basilashvili	6	2										N Basilashvili	6⁵	3	4
	L Musetti	6⁵	6	6	6							22	R Opelka	7⁷	6	6
WC	E Nava	7⁷	4	1	3			L Musetti	6¹	5	4
	S-w Kwon	6³	4	4			22	R Opelka	7⁷	7	6
22	R Opelka	7⁷	6	6													22	R Opelka	7⁸	4	1	3
25	K Khachanov	4	6	6	3	2												L Harris	6⁶	6	6	6
	L Harris	6	1	4	6	6		L Harris	6	6	6
	P Cuevas	1	3	1			WC	E Escobedo	4	4	2
WC	E Escobedo	6	6	6									L Harris	6	6	6
	R Carballés Baena	7⁷	6	1	6							7	D Shapovalov	4	4	4
	T Paul	6⁵	2	6	3			R Carballés Baena	6⁷	3	0
	F Delbonis	2	2	3			7	D Shapovalov	7⁹	6	6
7	D Shapovalov	6	6	6

Bottom half

Section 5

First round							Second round						Third round							Fourth round

5	A Rublev	6	7⁷	6
Q	I Karlović	3	6³	3			5	A Rublev	7⁷	6⁵	6	6
	P Martínez	4	4	7⁹	6	6		P Martínez	6²	7⁷	1	1
	J Duckworth	6	6	6⁷	2	2							5	A Rublev	6	3	6⁶	6	1
	F Tiafoe	7¹⁰	5	6	6									F Tiafoe	4	6	7⁸	4	6
Q	C Eubanks	6⁸	7	3	4			F Tiafoe	6	6	7
	G Pella	6²	6	6	6			G Pella	1	2	5
32	F Krajinović	7⁷	3	2	2																F Tiafoe	6	2	6⁶	4
18	R Bautista Agut	6	6	6																12	F Auger-Aliassime	4	6	7⁸	6
	N Kyrgios	3	4	0			18	R Bautista Agut	6	6	6
Q	K Majchrzak	4	2	6	1			E Ruusuvuori	1	3	2
	E Ruusuvuori	6	6	3	6								18	R Bautista Agut	3	4	6	6	3
	F López	7	6⁶	6	3	3							12	F Auger-Aliassime	6	6	4	3	6
LL	B Zapata Miralles	5	7⁸	4	6	6	LL	B Zapata Miralles	6⁵	3	2
Q	E Donskoy	6⁰	6	6¹	6⁸		12	F Auger-Aliassime	7⁷	6	6
12	F Auger-Aliassime	7⁷	3	7⁷	7¹⁰

Section 6

First round							Second round							Third round							Fourth round

16	C Garín	6	4	6	7⁷
	N Gombos	3	6	4	6⁴		16	C Garín	6	6⁵	2	4
Q	H Laaksonen	7⁸	7⁷	6			Q	H Laaksonen	3	7⁷	6	6
	J Millman	6⁶	6²	1										Q	H Laaksonen	6	3	1	4
	D Lajović	6	7	2	6									Q	P Gojowczyk	3	6	6	6
	B Paire	3	5	6	4			D Lajović	6	4	6	5	4
Q	P Gojowczyk	1	6	6	5	6	Q	P Gojowczyk	2	6	2	7	6
23	U Humbert	6	1	2	7	4															Q	P Gojowczyk	7	1	7	2	0
26	C Norrie	4	4	3																		C Alcaraz	5	6	5	6	6
	C Alcaraz	6	6	6				C Alcaraz	7⁸	4	6	6
	M Kecmanović	7¹²	6	5	3	4		A Rinderknech	6⁶	6	1	4
	A Rinderknech	6¹⁰	3	7	6	6									C Alcaraz	6	4	7⁷	0	7⁷
	P-H Herbert	6	6	4	3	3								3	S Tsitsipas	3	6	6²	6	6⁵
	A Mannarino	3	4	6	6	6		A Mannarino	3	4	7⁷	0
	A Murray	6	6⁷	6	3	4	3	S Tsitsipas	6	6	6⁴	6
3	S Tsitsipas	2	7⁹	3	6	6

Section 7

First round							Second round							Third round						Fourth round

8	C Ruud	6	6	6
LL	Y Sugita	3	2	2			8	C Ruud	6	4	3	4
Q	B van de Zandschulp	2	3	6	7	6	Q	B van de Zandschulp	3	6	6	6
	C Taberner	6	6	4	5	3								Q	B van de Zandschulp	3	6	6	6
	F Bagnis	6	6	6											F Bagnis	6	0	2	2
	T Daniel	3	3	3				F Bagnis	7⁷	4	6	6
Q	M Trungelliti	5	6	7	6³	6	Q	M Trungelliti	6⁴	6	3	3
29	A Davidovich Fokina	7	3	5	7⁷	4														Q	B van de Zandschulp	6	6	5	5	6
19	J Isner	6⁷	6⁶	3																11	D Schwartzman	3	4	7	7	1
WC	B Nakashima	7⁹	7⁸	6			WC	B Nakashima	3	6	6	2	4
Q	A Molčan	4	6	6	6		Q	A Molčan	6	3	1	6	6
Q	C İlkel	6	3	1	1									Q	A Molčan	4	3	3
	J Veselý	6¹	6	6	6⁵	6⁴								11	D Schwartzman	6	6	6
	K Anderson	7⁷	4	3	7⁷	7⁷		K Anderson	6⁴	3	4
	R Berankis	5	3	3			11	D Schwartzman	7⁷	6	6
11	D Schwartzman	7	6	6

Section 8

First round							Second round						Third round							Fourth round

15	G Dimitrov	6	7⁷	6
WC	S Riffice	1	6³	3			15	G Dimitrov	6⁴	6⁴	0^r
	A Popyrin	6	6³	6	6			A Popyrin	7⁷	7⁷	4
	R Albot	3	7⁷	3	3									A Popyrin	6	6	3	4	6¹
	M Giron	6	6	7									24	D Evans	4	3	6	6	7⁷
Q	A Hoang	3	4	5				M Giron	4	6³	6	3
	T Monteiro	3	7⁸	4	1		24	D Evans	6	7⁷	2	6
24	D Evans	6	6⁶	6	6															24	D Evans	3	4	3
30	M Čilić	7⁷	7⁷	2	1	0^r														2	D Medvedev	6	6	6
PR	P Kohlschreiber	6⁴	6³	6	6	2	PR	P Kohlschreiber	4	3	1
LL	M Kukushkin	6	6	4	4	2		P Andújar	6	6	6
	P Andújar	3	4	6	6	6								P Andújar	0	4	3
	D Koepfer	6	3	4	6	6							2	D Medvedev	6	6	6
Q	Q Halys	4	6	6	3	4		D Koepfer	4	1	2
	R Gasquet	4	3	1			2	D Medvedev	6	6	6
2	D Medvedev	6	6	6

Seeded players

The following are the seeded players. Seedings are based on ATP rankings as of August 23, 2021. Rank and points before are as of August 30, 2021.

As a result of pandemic-related adjustments to the ranking system, players are defending the greater of their points from the 2019 and 2020 tournaments.

Seed	Rank	Player	Points before	Points defending from 2019 or 2020	Points won	Points after	Status
1	1	Novak Djokovic	11,113	180	1,200	12,133	Runner-up, lost to Daniil Medvedev [2]
2	2	Daniil Medvedev	9,980	1,200	2,000	10,780	Champion, defeated Novak Djokovic [1]
3	3	Stefanos Tsitsipas	8,350	(150)^†	90	8,350^{^}	Third round lost to Carlos Alcaraz
4	4	Alexander Zverev	8,240	1,200	720	7,760	Semifinals lost to Novak Djokovic [1]
5	7	Andrey Rublev	6,400	360	90	6,130	Third round lost to Frances Tiafoe
6	8	Matteo Berrettini	5,533	720	360	5,173	Quarterfinals lost to Novak Djokovic [1]
7	10	Denis Shapovalov	3,580	360	90	3,310	Third round lost to Lloyd Harris
8	11	Casper Ruud	3,455	90	45	3,440^{^}	Second round lost to Botic van de Zandschulp [Q]
9	12	Pablo Carreño Busta	3,325	720	10	2,650^{^}	First round lost to Maxime Cressy [Q]
10	13	Hubert Hurkacz	3,128	45	45	3,128	Second round lost to Andreas Seppi
11	14	Diego Schwartzman	2,980	360	180	2,800	Fourth round lost to Botic van de Zandschulp [Q]
12	15	Félix Auger-Aliassime	2,828	180	720	3,368	Semifinals lost to Daniil Medvedev [2]
13	16	Jannik Sinner	2,750	35	180	2,895	Fourth round lost to Alexander Zverev [4]
14	17	Alex de Minaur	2,555	360	10	2,218^{^}	First round lost to Taylor Fritz
15	18	Grigor Dimitrov	2,511	720	45	1,836	Second round retired against Alexei Popyrin
16	19	Cristian Garín	2,510	45	45	2,510	Second round lost to Henri Laaksonen [Q]
17	20	Gaël Monfils	2,503	360	90	2,233	Third round lost to Jannik Sinner [13]
18	21	Roberto Bautista Agut	2,405	90	90	2,405	Third round lost to Félix Auger-Aliassime [12]
19	22	John Isner	2,238	90	10	2,171^{^}	First round lost to Brandon Nakashima [WC]
20	23	Lorenzo Sonego	2,227	45+125^‡	10+20	2,097^{^}	First round lost to Oscar Otte [Q]
21	25	Aslan Karatsev	2,109	(125)^§	90	2,074	Third round lost to Jenson Brooksby [WC]
22	24	Reilly Opelka	2,206	45	180	2,341	Fourth round lost to Lloyd Harris
23	26	Ugo Humbert	2,090	45+90^‡	10+45	2,045^{^}	First round lost to Peter Gojowczyk [Q]
24	27	Daniel Evans	2,074	90	180	2,164	Fourth round lost to Daniil Medvedev [2]
25	28	Karen Khachanov	2,010	90	10	1,965^{^}	First round lost to Lloyd Harris
26	29	Cameron Norrie	1,975	90	10	1,930^{^}	First round lost to Carlos Alcaraz
27	30	David Goffin	1,933	180	10	1,766^{^}	First round lost to Mackenzie McDonald
28	31	Fabio Fognini	1,734	10	10	1,744^{^}	First round lost to Vasek Pospisil
29	32	Alejandro Davidovich Fokina	1,723	180+194^‡	10+60	1,429^{^}	First round lost to Marco Trungelliti [Q]
30	36	Marin Čilić	1,650	180	10	1,493^{^}	First round retired against Philipp Kohlschreiber [PR]
31	37	Alexander Bublik	1,633	90	45	1,588	Second round lost to Jack Sock [WC]
32	38	Filip Krajinović	1,589	90	10	1,544^{^}	First round lost to Guido Pella

† Because the 2020 tournament was non-mandatory, the player was defending 150 points from his 19th best result instead of 90 points from the 2020 US Open.
‡ The player was also defending points from one or more 2019 ATP Challenger Tour tournaments. Those points were frozen in 2020 as a result of pandemic-related adjustments to the ranking system.
§ The player did not qualify for the tournament in 2019 or 2020 and is defending points from a 2020 ATP Challenger Tour tournament (Ostrava) instead.
^ Because the 2021 tournament was non-mandatory, the player substituted his 19th best result in place of the points won in this tournament.

Withdrawn players

The following players would have been seeded, but withdrew before the tournament began.

Rank	Player	Points before	Points defending from 2019 or 2020	Points after	Withdrawal reason
5	Rafael Nadal	7,815	2,000	5,815	Left foot Injury
6	Dominic Thiem	6,995	2,000	4,995	Right wrist injury
9	Roger Federer	4,125	360	3,765	Right knee surgery
33	Stan Wawrinka	1,715	360	1,355	Left foot injury
34	Milos Raonic	1,694	45	1,649	Right leg injury
35	Borna Ćorić	1,674	360	1,319^{^}	Right shoulder injury

^ Because the 2021 tournament was non-mandatory, the player substituted his 19th best result in place of zero points for this tournament.

Other entry information

Wild card entries

Qualifiers

Lucky losers

Protected ranking

Philipp Kohlschreiber (96)^[8]

Withdrawals

Stan Wawrinka (29)^[9] → replaced by Andy Murray (104)
Roger Federer (9)^[10] → replaced by Tallon Griekspoor (105)
Borna Ćorić (33)^[11] → replaced by Mackenzie McDonald (106)
Kyle Edmund (85)^[12] → replaced by Denis Kudla (107)
Dominic Thiem (6)^[13] → replaced by Carlos Taberner (108)
Rafael Nadal (3)^[14] → replaced by Salvatore Caruso (109)
Aljaž Bedene (58)^{[citation needed]} → replaced by Taro Daniel (110)^[i]
Milos Raonic (22)^[15] → replaced by Bernabé Zapata Miralles (LL)
Jo-Wilfried Tsonga (93) → replaced by Yūichi Sugita (LL)
Gilles Simon (102) → replaced by Mikhail Kukushkin (LL)

Explanatory notes

^ Last direct acceptance

References

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^ ^a ^b "Djokovic Targets Grand Slam At The US Open; All You Need To Know". ATP Tour. August 23, 2021. Archived from the original on August 25, 2021. Retrieved August 24, 2021.
^ "Defending champion Dominic Thiem to miss US Open tennis tournament with wrist injury". ESPN. August 18, 2021. Archived from the original on August 19, 2021. Retrieved August 19, 2021.
^ "US Open: Spanish teenager Carlos Alcaraz wins in five sets to reach quarter-finals". BBC Sport. September 5, 2021. Archived from the original on September 5, 2021. Retrieved September 5, 2021.
^ "Felix Auger-Aliassime & Carlos Alcaraz Meet; Daniil Medvedev, Botic Van De Zandschulp Eye Semi-final Spots | ATP Tour | Tennis". ATP Tour. Archived from the original on September 7, 2021. Retrieved September 7, 2021.
^ Fernandez, Megan (September 9, 2021). "By the Numbers: Botic van de Zandschulp's big breakthrough at the 2021 US Open". usopen.org. Archived from the original on September 7, 2021. Retrieved September 7, 2021.
^ "Rising American tennis star Zach Svajda makes history with USTA Boys Nationals win in Kalamazoo". www.mlive.com. August 16, 2021. Archived from the original on August 17, 2021. Retrieved August 19, 2021.
^ Kapetanakis, Arthur (July 21, 2021). "Novak Djokovic, Rafael Nadal, Roger Federer headline 2021 US Open men's singles field". US Open. Archived from the original on July 28, 2021. Retrieved July 27, 2021.
^ "STAN WAWRINKA WITHDRAWS FROM US OPEN, MOVING ANDY MURRAY INTO MAIN DRAW". Tennis.com. August 9, 2021. Archived from the original on August 9, 2021. Retrieved August 10, 2021.
^ Pantorno, Joe (August 15, 2021). "Roger Federer withdraws from 2021 US Open". AM New York. Archived from the original on August 16, 2021. Retrieved August 16, 2021.
^ Mesic, Dzevad (August 17, 2021). "Borna Coric's rough 2021 season continues, pulls out of US Open". Tennis World USA. Archived from the original on August 17, 2021. Retrieved August 18, 2021.
^ "Kyle Edmund: British No 3 withdraws from US Open". Sky Sports. August 17, 2021. Archived from the original on August 17, 2021. Retrieved August 18, 2021.
^ "US Open: Dominic Thiem will not defend men's singles title after pulling out through injury". Sky Sports. August 18, 2021. Archived from the original on August 18, 2021. Retrieved August 18, 2021.
^ "Rafael Nadal: Spaniard ends 2021 season because of foot injury". BBC Sport. August 20, 2021. Archived from the original on August 20, 2021. Retrieved August 20, 2021.
^ "Sofia Kenin, Milos Raonic withdraw from 2021 US Open". US Open. August 25, 2021. Archived from the original on August 26, 2021. Retrieved August 26, 2021.

External links

Preceded by 2021 Wimbledon Championships – Men's singles	Grand Slam men's singles	Succeeded by 2022 Australian Open – Men's singles

[15] Last direct acceptance

[1] "Daniil Medvedev ends Novak Djokovic's Grand Slam dreams". TheGuardian.com. September 12, 2021. Retrieved September 12, 2021.

[Calendar_Slam-2] "Djokovic Targets Grand Slam At The US Open; All You Need To Know". ATP Tour. August 23, 2021. Archived from the original on August 25, 2021. Retrieved August 24, 2021.

[3] "Defending champion Dominic Thiem to miss US Open tennis tournament with wrist injury". ESPN. August 18, 2021. Archived from the original on August 19, 2021. Retrieved August 19, 2021.

[4] "US Open: Spanish teenager Carlos Alcaraz wins in five sets to reach quarter-finals". BBC Sport. September 5, 2021. Archived from the original on September 5, 2021. Retrieved September 5, 2021.

[5] "Felix Auger-Aliassime & Carlos Alcaraz Meet; Daniil Medvedev, Botic Van De Zandschulp Eye Semi-final Spots | ATP Tour | Tennis". ATP Tour. Archived from the original on September 7, 2021. Retrieved September 7, 2021.

[6] Fernandez, Megan (September 9, 2021). "By the Numbers: Botic van de Zandschulp's big breakthrough at the 2021 US Open". usopen.org. Archived from the original on September 7, 2021. Retrieved September 7, 2021.

[7] "Rising American tennis star Zach Svajda makes history with USTA Boys Nationals win in Kalamazoo". www.mlive.com. August 16, 2021. Archived from the original on August 17, 2021. Retrieved August 19, 2021.

[MensEntryList-8] Kapetanakis, Arthur (July 21, 2021). "Novak Djokovic, Rafael Nadal, Roger Federer headline 2021 US Open men's singles field". US Open. Archived from the original on July 28, 2021. Retrieved July 27, 2021.

[9] "STAN WAWRINKA WITHDRAWS FROM US OPEN, MOVING ANDY MURRAY INTO MAIN DRAW". Tennis.com. August 9, 2021. Archived from the original on August 9, 2021. Retrieved August 10, 2021.

[10] Pantorno, Joe (August 15, 2021). "Roger Federer withdraws from 2021 US Open". AM New York. Archived from the original on August 16, 2021. Retrieved August 16, 2021.

[11] Mesic, Dzevad (August 17, 2021). "Borna Coric's rough 2021 season continues, pulls out of US Open". Tennis World USA. Archived from the original on August 17, 2021. Retrieved August 18, 2021.

[12] "Kyle Edmund: British No 3 withdraws from US Open". Sky Sports. August 17, 2021. Archived from the original on August 17, 2021. Retrieved August 18, 2021.

[13] "US Open: Dominic Thiem will not defend men's singles title after pulling out through injury". Sky Sports. August 18, 2021. Archived from the original on August 18, 2021. Retrieved August 18, 2021.

[14] "Rafael Nadal: Spaniard ends 2021 season because of foot injury". BBC Sport. August 20, 2021. Archived from the original on August 20, 2021. Retrieved August 20, 2021.

[16] "Sofia Kenin, Milos Raonic withdraw from 2021 US Open". US Open. August 25, 2021. Archived from the original on August 26, 2021. Retrieved August 26, 2021.

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v t e 2021 ATP Tour « 2020 2022 »
Grand Slam events	Australian Open (S, D, X)^† French Open (S, D, X) Wimbledon (S, D, X) US Open (S, D, X)
ATP Tour Masters 1000	Miami (S, D) Monte Carlo (S, D) Madrid (S, D) Rome (S, D) Toronto (S, D) Cincinnati (S, D) Indian Wells (S, D)^† ~~Shanghai~~^† Paris (S, D)
ATP Tour 500	Rotterdam (S, D) Dubai (S, D) Acapulco (S, D) Barcelona (S, D) Halle (S, D) London (S, D) Hamburg (S, D) Washington (S, D) ~~Beijing~~^† ~~Tokyo~~^† Vienna (S, D) ~~Basel~~^†
ATP Tour 250	Delray Beach (S, D)^† Antalya (S, D)^† Melbourne 1 (S, D)* Melbourne 2 (S, D)* Montpellier (S, D) Córdoba (S, D) Singapore (S, D)* Buenos Aires (S, D) Doha (S, D) Marseille (S, D) Santiago (S, D) Marbella (S, D)* Cagliari (S, D)* Belgrade 1 (S, D) Estoril (S, D) Munich (S, D) Geneva (S, D) Lyon (S, D) Belgrade 2 (S, D)* Parma (S, D)* Stuttgart (S, D) ~~Rosmalen~~^† Eastbourne (S, D) Mallorca (S, D) Newport (S, D) Båstad (S, D) Los Cabos (S, D) Umag (S, D) Gstaad (S, D) Kitzbühel (S, D) Atlanta (S, D) Winston-Salem (S, D) Metz (S, D) Nur-Sultan (S, D)* San Diego (S, D)* Sofia (S, D) Moscow (S, D) Antwerp (S, D) St. Petersburg (S, D) Stockholm (S, D)
Team events	ATP Cup^† Davis Cup Finals Laver Cup
† – Tournaments are affected by the COVID-19 pandemic * – Tournaments are introduced due to the impact of the COVID-19 pandemic
Summer Olympic Games, Tokyo (S, D, X) ATP Finals, Turin (S, D) Next Generation ATP Finals, Milan