ATP - Vienna 2R start

First round completed and second round commenced in Vienna.

2021 Erste Bank Open - an ATP 500 tournament, on Hard Indoor, in Vienna, Austria, 25-31 October 2021.

2020 champion (not defending):

Andrey Rublev (5) who defeated lucky loser Lorenzo Sonego 6-4 6-4

Cristian Garin withdrew after the main draw was published due to a shoulder injury, and was replaced by lucky loser Dominik Koepfer.

First round results:

- Gaël Monfils defeated wildcard Lorenzo Musetti 7-6(2) 6-4

- Diego Schwartzman (8) defeated Fabio Fognini 6-2 7-5

- Lorenzo Sonego defeated lucky loser Dominik Koepfer 6-4 6-3

- Jannik Sinner (7) defeated Reilly Opelka 6-4 6-2

Second round results:

- Carlos Alcaraz defeated wildcard Andy Murray 6-3 6-4

- Matteo Berrettini (3) defeated Nikoloz Basilashvili 6-7(5) 6-2 6-3