Polished form and excellent extension — not to mention a terrific camera angle– make this a delivery worth examining. Nineteen-year-old rising star Andy Murray of Scotland has assaulted the rankings in the last two years, moving nearly 500 spots to his current position inside the Top 40. Solid in every aspect of his game, Murray [...]

1. FEET » Once he tosses the ball and pushes down, Roddick almost immediately gets up on his toes. He positions his feet closer together than Sampras does, but other than shifting his front foot back a bit in the beginning stages of his motion there isn’t much movement. This is what’s comfortable to him, [...]

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 [...]

1. TOSSING ARM Ivanisevic was the perfect example of “liquid power.” He flowed up and into a serve faster than anyone in the game in the last 20 years. Not only was his serve hard, it was on you in a blink and was very tough to read. It was deceptive because of Ivanisevic’s low [...]

Like Ivanisevic two decades ago, Isner has served his way into the spotlight. Here’s what you can learn from two of the most potent deliveries tennis has ever seen. 1. TOSSING ARM Today you see most pros lift their tossing arms fi rst rather than both arms together. That’s a big change from the past [...]