Alexander Zverev lost out to Jannik Sinner 6-3, 6-3, 4-6, 6-3 at
Roland Garros but revealed he had COVID-19 like symptoms during the match.
Zverev said he was feeling sick and had a fever during proceedings revealing himself that he shouldn't have played.
"I'm completely sick. I can't really breathe, as you can hear by my voice," Zverev told reporters at the post-match press conference. "I had fever, you know, as well. Yeah I'm not in the best physical state, I would say. I think that had a little bit of an effect on the match today. I warmed up today; I shouldn't have played."
In a statement from the FFT, it was confirmed that Zverev did not tell the tournament doctors before the match.
"Zverev is up to date on his tests, which have all been negative. His last test was on September 29, with results received on September 30. Today he received a reminder for his next test, to be carried out within 5 days of the previous results. He did not consult the tournament doctors before his match."