Cahill: "Sinner had a virus in Cincinnati. He's better now and ready to return to the field."

“Jannik had a virus that forced him to retire against Alcaraz.” Darren Cahill confirms that a virus was the cause of the problem that forced Sinner to retire during the first set of the Cincinnati Masters 1000 final against Alcaraz.

Sinner heading to the US Open

The world number 1 threw in the towel at 5-0 in favor of the Spaniard. Now, however, the Australian coach assures, things are looking up, and Sinner is ready to return to the court to best prepare for the US Open (the draw is tomorrow at 6 p.m. Italian time), which kicks off on Sunday: "I spoke to him a little last night. He was feeling a little better. He'll take today off again, that's the plan, and I hope he can get on court tomorrow and start hitting some balls. We're confident," Cahill told ESPN.