Originally Posted by fastdunn
And when Federer hit his forehand on the run, she shows some awkwardness
in his steps. Breaking with his right foot with some stutter steps near contact
zone. Sampras passes by the contact zone like wind.... shuuu--ing.
I think we talked about this before. It's due to the way they hit the ball differently, not style. Federer hits the ball earlier than Sampras, thus he hits the ball much closer to his body than Sampras. Thus even when Federer hits forehand on the run, he needs to get to the ball one extra step closer to the ball than Sampras.