Is it fatigue..?

I am not getting it - why is Federer coming down with these things so often. Not so long ago, it was his bout with mononucleosis (whatever that is), and now he has had to pull out of the Paris Masters because of a sore back. This guy is too good to be not playing in these important competitions.

Fatigue or not, Roger can't beat Rafa. You should watch these two play. Nadal has more energy. If he (Federer) does win, then it's just pure luck.

May be he over using his body. Player must have enough energy. Do you play tennis too? I know a Training Program That help a lot, for those who want to be great players.

yes no doubt in it