karlovic serve

6-10

roddick has a technique of his own, it shouldn't be copied lool

yeah i know, i was just suggesting. its a thing of beauty

monster

Does he really need to? Roddick's fastest serve has 2mph on Karlovic's. He just has to use that height of his.

Are you guys really kidding? Ivo has a great serve because of his height, which troubles all of his opponents. The thing is he doesnt NEED to jump. All the other guys jump because they need to lift themselves to his height. Yes, it might help him, but is it really worth it? When you serve from higher to the ground the projectory of the ball tends to bounce higher. Try it. Serve from the service line, then the baseline. Your serve from the service line is extremely higher. That's how Ivo feels.

it's not all in the height...there have been a lot of tall players who didn't had powerful serve

I promise you he has better groundstrokes than 90% of the world... why don't you have a baseline rally with him and see whether you last? Promise you he'd win.

No, he really wouldn't.

The taller you are, the slower you look. That's as fast as he can swing.