No, if I wore a sleeveless shirt, people would try to feed me after the match. If you got the guns, go for it. I got two breadsticks sticking out of my sleeve. I'll stick with sleeves.

I think I have a lot of room for improvement. My serve is okay, but I need to work on a lot of things: return, transition game, backhand.

When you come off something really disappointing, you want to come back and kind of regroup and get involved in something positive right away.

I do understand that when someone gives you a [expletive] load of money, you take that money. Someone like Larry Ellison wants to invest into his event and make it the biggest possible, and he gets stopped by the ATP. If you're a start-up, what would make you want to navigate through that and to go through that firing line? How can you step into tennis with any confidence? It's the stupidest thing I've ever heard of.

Most players who play tennis love the game. But I think you also have to respect it. You want to do everything you can in your power to do your best. And for me, I know I get insane guilt if I go home at the end of the day and don't feel I've done everything I can. If I know I could have done something better, I have this uneasy feeling.

If I wore a sleeveless shirt, people would try to feed me after the match.

I've become better at the net. I've got a 135 mph serve so I'd be stupid not to follow that in. Overall I'm a better player than I was last year.