“I like to joke and not take the difficulties too close to my heart. It’s great that Federer is also a very funny guy and loves to joke in the locker room. Murray also behaves very nicely. I know that Andy has not yet decided what to do with his career, but if this is the last year of his career, everyone will be bored. He is not only a real champion, but also a wonderful person, ”Tennis World quotes Zverev.