Matteo Berrettini was forced to pull out of Wimbledon on Tuesday after testing positive for coronavirus as Serena Williams prepared to return to singles tennis after a year away. 

The early action at the All England Club on Tuesday was overshadowed by the announcement from Berrettini—last year’s runner-up—that he was out of the event. “I am heartbroken to announce that I need to withdraw from @wimbledon due to a positive Covid-19 test result,” the 26-year-old Italian wrote on Instagram.