Everyone has to call 'time' at some stage.

I'm fortunate: I can play as long as I want to play. There's no coach or trainer who is going to say to me that I'm dropped or sacked, it's time to move on. I can play as long as I want to play.

I have sometimes played my best Davis Cup matches away from home when you stay in the moment a bit more. But it is tough when half the crowd are spitting on you.

He'll go down as one of the guys who changed our sport in a lot of ways, not only the way he played the game, but also the way that he conducted himself on and off the court.

Tennis players go into a press conference, and almost every one of them is the same. We do very little differently on a day-to-day basis.

Everyone has to call 'time' at some stage.

I'm not a guy who needs to read motivation books.