I have no sense of humor about losing

The thing, when you're down two sets to love, is to stay calm, even though it's hard, because people are freaking out, people are worried for you.

Is only a tennis match. At the end, that's life. There is much more important things.

I'd rather lose an argument than get into a long discussion in order to win it.

My serve can get better, for sure. It's not just about serving bombs, but positioning, variation in speed, in spin.

My uncle developed the training philosophy. His idea of good tennis training is basically quite simple: you must try to gain time.

For sure, with golf it's not a physically demanding sport like tennis. That's what makes tennis great - you combine both things. It's a very mental sport and at the same time can be dramatically physical. But I do admire the mentality of sport more than the physicality because physical performance is much easier to practice than mental performance.