Stanislas Wawrinka

As a tennis player, you have to get used to losing every week. Unless you win the tournament, you always go home as a loser. But you have to take the positive out of a defeat and go back to work. Improve to fail better.

You can't underestimate rest. Sometimes in tennis we don't realize that to rest your body is as important as it is to practice. We are traveling so much, all year, in different conditions, different courts, different surfaces, different balls - so we always have to adapt.

I think the most important thing I work on is just my mental approach to every day, my mental approach to the game. How to come in each and every day focused, doing what I want to do, I think that's just the biggest issue.