One of the worst things sin did for man was to make him selfish, for selfishness cannot love.

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 bought a Ferrari...and then sold it after a couple of months.

It's hard because you want to be able to just, okay, focus your energy on trying to win the match, but you need to then have tactics as to how you're going to deal with how you're feeling.

There is a fear of emotion in tennis.

It's difficult to relax on tournaments, even in posh hotels, because you don't know how long you will be there - whether you'll lose a match on the first day and leave or whether you'll stay for longer.

I can't worry about match too much. There's nothing I can do.