On Wednesday, June 17, 2020, tour tennis announced its return with the US Open and revised schedules.
Less than 24 hours after Grigor Dimitrov announced he had tested positive for coronavirus on Sunday, June 21, 2020, Croatian Borna Coric confirmed he has tested positive for the virus after appearing at the second leg of the Adria Tour in Zadar, Croatia.
“Hi everyone, I wanted to inform you all that I tested positive for COVID-19. I want to make sure anyone who has been in contact with me during the last few days gets tested,” Coric tweeted. “I am really sorry for any harm I might have caused! I’m feeling well and don’t have any [symptoms]. Please stay safe and healthy! Lots of love to all!”
Dimitrov played Coric in his opening match on Saturday, June 20, 2020, losing, 4-1, 4-1, before withdrawing and flying back to Monaco. Coric returned the court for an evening-session match against world No. 1 Novak Djokovic, who would win, 4-1, 4-3 (1).
Djokovic’s fitness coach, Marko Paniki, and Dimitrov’s coach, Christian Groh, also reportedly tested positive, according to multiple sources.
Andrey Rublev, who was set to play Sunday’s Zadar final against Djokovic before it was cancelled, confirmed later on Monday that he tested negative for COVID-19.
Rublev expressed that he will be following those guidelines. The Russian went 3-0 over the weekend, defeating Zverev, Cilic, and Danilo Petrovic.
Alexander Zverev and Marin Cilic posted social media updates informing fans they have tested negative, though symptoms can take up to 14 days to appear if exposed to the virus.
Cilic and Zverev shared they would also self-isolate.

