Learn to think like a winner. Think positive and visualize your strengths.

I was calling double faults on girls from Russia I’d never seen before in my life, … For a while it got so bad that I go scared. I literally scared me. I was getting...

Losers have tons of variety. Champions just take pride in learning to hit the same old boring winning shots.

The moment of enlightenment is when a person’s dreams of possibilities become images of probabilities.