ATP - Stuttgart

The ATP tour continues in Germany.

2021 MercedesCup - an ATP 250 tournament, on Grass, in Stuttgart, Germany, 8-13 June 2021.

Event not held last year due to COVID-19

2019 champion (not defending):

Matteo Berrettini who defeated Felix Auger-Aliassime (7) 6-4 7-6(11)

The following players withdrew after entering but before the main draw was published:

- Alexander Bublik replaced by Alexei Popyrin 

- Taylor Fritz replaced by Marin Cilic 

- Cristian Garin replaced by Jordan Thompson 

- Aslan Karatsev replaced by Jeremy Chardy

- Reilly Opelka replaced by Lloyd Harris 

- Benoit Paire replaced by Sam Querrey 

- Milos Raonic replaced by Marton Fucsovics 

- Jannik Sinner replaced by Dominik Koepfer 

- Lorenzo Sonego replaced by Guido Pella

- Jan-Lennard Struff replaced by Feliciano Lopez 

- Stan Wawrinka replaced by John Millman 

- Alexander Zverev replaced by Gilles Simon 

Denis Shapovalov, world number 14, is top seed.

The other 7 seeds are all in the top 42

The top 4 seeds have first round byes.