There is a good lesson here for the young athlete. This is what Rafael Nadal said to the press after his defeat at the French Open:
So when one player [plays] bad, he must lose. That’s what happened today. I have to accept with the same calm when I win than when I lose. After four years I lose here, and the season continue. When you lose, always everybody starts to analyze if I play too much. If I’m tired. The true, I won four years in a row playing the same. That’s the true. This year I play the same and I lost. What happen? I lost. That’s it.
What is cool, is he did not blame anyone, he took full credit for his defeat.