Normally I sleep for 9, 10 hours a night.
When you have beaten guys a few times, you don't want them to think they know how you are going to play them. You have to try and find different ways of beating them. You have to do things they don't expect sometimes, put something unpredictable into your game.
For much of the year, you're just trying to maintain your fitness. It's not often you get a lot of time to really concentrate on improving it.
I've never felt nervous in front of big crowds and in big stadiums.
I used a lot of sports psychologists when I was younger... sometimes it helped, sometimes it didn't.
I hate losing.
When I lost the Wimbledon 2012 final, I didn't know if I'd ever win a slam.
Everything in tennis is so neat and nice but boxing has sport down to its essence; it is very pure and I like that.
I think most players would love, at one stage in their career, to say, 'I've been No. 1 in the world.'
There's two people I would say to try to go and watch who are probably the future of tennis. One girl called Taylor Townsend, she got a wildcard from the event into Wimbledon; she's an American girl. On the men's side, there's an Australian guy called Nick Kyrgios; he's 19, and he was the number one junior in the world.
Staying more controlled mentally stemmed from taking my fitness more seriously. When you're doing track work, sprints and so on, it's pretty painful, but that does make you feel better prepared and therefore mentally stronger when you're going into a match. You know, without a doubt, that you are strong enough to last.
A lot of times, the press guys ask why I take an hour and a half to come to the interview room, but if you don't do the massage and the ice baths and the stretching and the cooling down and the eating, and your opponent is doing that stuff, they already have an advantage.
People say to me, 'You don't seem that interested in interviews.' Well, you know, I'm not, often. I'm not going to talk tactics with the press, so you are left with talking about how you are feeling; for me, it is not the most interesting thing to be doing.
When I'm at home, I enjoy going go-karting.
I don't actually go to that many concerts.
For me, by far, the Olympics is the biggest sporting event in the world.
Boxers risk a lot in the ring. That's one of the things that attracts me to it. You want to see a knockout but I also really don't want to see people get hurt. It's this constant dilemma when I'm watching boxing. The only times I get nervous is watching a really big fight or when my brother is playing. I get to the stage where I'm actually shaking.
When I'm in Miami I like to go and watch basketball, the Miami Heat.
It's easy to start over-thinking things and over-analysing things.
Everyone has to try to give back as much as possible because I think in all sports it helps kids to have role models or people to look up to. Someone like Jess Ennis, I know a lot of young girls have started to get into athletics stuff because of her, because of her success.
I never read. The paper or anything. I watch a lot of movies, and TV series and stuff. But I never, never read.