Big serving Ivo Karlovic is still remembered for his first round win over Lleyton Hewitt at Wimbledon
2003. The Croat is the tallest player on tour and his serving is perhaps the best in World tennis.
Karlovic is an intense competitor and has had his fair share of controversies in the past. Karlovic is
still considered a big threat by almost all players, especially on grass. The now 33 year-old (turns 34
in Feb), was ranked as high as 14 in the world in 2008 and has won 4 titles on the ATP Tour.