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.

That's when you've got to grit your teeth and hang in there and try and find a way to win when you're not playing your best tennis - that's what I can be proud of

Why'd you leave the match, huh?

Even when I was No. 1 in the world, I was taking it one match at a time. I never was a player to look too far ahead, the way draws can pan out.

When I go out to play, I still believe I'm as good as anyone out there. I don't have to prove anyone wrong. I know what I've done and how well I can play.

I don't know. Haven't I always been mature?

Matches are won and lost so many times in the locker room.