'The world has been suffering enough. Get vaccinated. If he wanted, he would
playing here in Australia without problems,' the world number six said.
'I went through COVID. I have been vaccinated twice. If you do this, you don't
have any problem to play here. That's the only clear thing.
'The rest of the things, I don't want to have or to give to you an opinion that I
don't have the whole information.
'The only for me clear thing is if you are vaccinated, you can play in the
Australian Open and everywhere, and the world in my opinion has been
suffering enough to not follow the rules.'