ZAGREB, Croatia (AP) The International Tennis Federation confirmed Sunday that Ivo Karlovic of Croatia broke the world record for the fastest serve. He struck a 156 mph serve in the fourth set of ...

John Isner had a really great career for a player with his characteristics. The former American ace managed to play an effective and dangerous tennis for all top players despite his height did not ...

Ivo Karlovic may be known for huge, bomb-tastic serves (and his almost seven-foot stature), but the Croatian doesn't think it's his serve that would make him invincible on the court. In an ...