Australian tennis legend . "I don't go out of my way to think about what Nick is thinking.
"You wouldn't know what he is going to come up with next but I think it's good that he's calling people out. If that's what he wants to do, that's good.
"I know when we were playing, if you had a problem you took it to the person. You didn't make it public. But it's a different world, I guess."
- TEAMtalk media