19. Lleyton Hewitt – net worth: $15 Million
Australian professional tennis player Lleyton Hewitt is one of those rare players whose career was full of unexpected outcomes, for better or for worse. Hewit was only twenty years old when he defeated at the time World #1 Yevgeny Kafelnikov and Pete Sampras the following day at 2001 US Open. Two years later he managed to become the only number one ranked player to be kicked out in the first round of ATP Masters Tournament. Hewitt has net worth of $15 million. Despite his sudden career ups and downs, he is considered to be significant figure in the world of tennis.