Thomas Mario Haas (born April 3, 1978 in Hamburg) is a German tennis player who plays right-handed. He reached a career-high ranking of World Number 2 in May of 2002.
Born in Hamburg to Brigitte and Peter Haas, Haas started playing his own version of tennis when he was two-years-old, by using a wooden plank to hit balls against the wall or into his father's hands. When his father noticed his talents, he started bringing Haas to his job, which happened to be that of a tennis coach.
At five years old, Haas won his first youth tournament, in Hamburg. At eight years old, he won his second, in Munich. Between eleven and thirteen, Haas would twice win the Austrian Championship, the German Championship, and the European Championship, but despite these victories, overall Tommy Haas has not yet won a grand slam final.