Stefanos Tsitsipas has revealed that he was struggling with illness during his first-round victory over Roberto Carballes Baena.

“I had an upset stomach and wasn’t feeling so great on the court,” he said.

“I couldn’t even pump myself up at the beginning of the match, because when something is bothering you that much, it takes your entire concentration and focus.

“That was perhaps the second battle I was facing today, along with my opponent. It’s going to take a lot for me to qualify, so if I manage to up my tennis during this entire week, let’s see.

“If I’m able to deliver something good here, I guess that also earns me a spot in Turin. Regardless of that. I’m just trying to improve and feel my game the best I can.”