US Open 2021 - Day 4 Men’s Singles 2R

US Open 2021 - Day Four Men’s Singles second round 

US Open - a Grand Slam tournament, on Hard, in New York City, New York, USA, 30 August - 12 September 2021.

2020 champion (not defending):

Dominic Thiem (2) who defeated Alexander Zverev (5) 2-6 4-6 6-4 6-3 7-6(6)

Second round results:

- Novak Djokovic (1) defeated Tallon Griekspoor 6-2 6-3 6-2

- Kei Nishikori defeated Mackenzie McDonald 7-6(3) 6-3 6-7(5) 2-6 6-3

- Aslan Karatsev (21) defeated Jordan Thompson 3-6 3-6 7-5 7-6(9) 6-1

- Wildcard Jenson Brooksby defeated Taylor Fritz 6-7(7) 7-6(10) 7-5 6-2

- Andreas Seppi defeated Hubert Hurkacz (10) 2-6 6-4 6-4 7-6(6)

- Qualifier Oscar Otte defeated Denis Kudla 6-4 6-4 6-2

- Ilya Ivashka defeated Vasek Pospisil 6-3 6-4 7-6(5)

- Matteo Berrettini (6) defeated Corentin Moutet 7-6(2) 4-6 6-4 6-3

- Alexander Zverev (4) defeated Albert Ramos-Vinolas 6-1 6-0 6-3

- Wildcard Jack Sock defeated Alexander Bublik (31) 7-6(3) 6-7(2) 6-4 4-6 6-3

- Gaël Monfils (17) defeated Steve Johnson 7-5 4-6 6-4 6-4

- Jannik Sinner (13) defeated wildcard Zachary Svajda 6-3 7-6(2) 6-7(6) 6-4

- Nikoloz Basilashvili defeated qualifier Maxime Cressy 7-6(3) 6-3 7-5

- Reilly Opelka (22) defeated Lorenzo Musetti 7-6(1) 7-5 6-4

- Lloyd Harris defeated wildcard Ernesto Escobedo 6-4 6-4 6-2

- Denis Shapovalov (7) defeated Roberto Carballes Baena 7-6(7) 6-3 6-0