Australian Open live: Chiefs face early schedule chaos as Nick Kyrgios rules out fitness tip

Yannik Grishnyk insisted he was not deliberately breaking any rules after being asked about Nick Kyrgios’ constant attacks on him.

The vocal Australian has repeatedly criticized Grishnyk for the anti-doping tests he failed last year.

In response, Sinner said, “I don’t think I have to answer that, to be honest.

“How to block it? It’s not like you just put it in a section and just say I don’t think about it anymore.

“In my mind, I know exactly what happened and that’s why I’m blocking it, no? I didn’t do anything wrong. That’s why I’m still here.

“That’s why I’m still playing. I don’t want to respond to what Nick said or what other players say.

“I think the most important thing is to have people around me that I can trust, people that they know exactly what happened. That’s all.”