I am two different people. What you see on the court is just natural for me. I wear my heart on my sleeve. I have always said 'C'mon' purely to fire myself up. Off the court, I am a lot shyer. I stick to my team and my family and people I trust.

I'd much rather win in three or four sets than go the distance all the time. I seem to put everyone through the wringer quite a bit.

I'm more in that Rafa Nadal high-energy high-octane mold out there. I wear that emotion on the court. That's how I play my best tennis. People either like that or not. And I can't change that: that's who I am on a tennis court.

That's what you do all the hard work for, to play in situations that put your body through gruelling times. If you're not up to it, pull out.

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

I was actually really happy with where my game was at. That's probably the most disappointing aspect.

My video game character is a bit better looking than me, actually. I don't think he has to worry about his hair getting messed up.