John Isner had a really great career for a player with his characteristics. The former American ace managed to play an ...

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 ...

PARIS—It takes a lot to make Grigor Dimitrov, the muscular, 23-year-old heartthrob who owns a backhand as powerful and shiny as a red Ferrari, look like a mere schoolboy in short pants.