One motion is a classic, the other is setting a trend. The styles may differ, but both serves more than get the job done.
The subtle differences in the way a player may stand or take the racquet back when he serves is a matter of individual style. Anything goes, as long as it’s not detrimental to the result. Sampras and Roddick have completely different styles when it comes to their serves, but at the moment of truth—contact—everything hits the mark exactly as it should. That’s why they’re two of the best servers the pro game has seen in the past 20 years.
SAMPRAS