About Nicolas Kiefer
Nicolas Kiefer is a German former professional tennis player. He reached the semifinals of the 2006 Australian Open and won a silver medal in men's doubles with partner Rainer Schüttler at the 2004 Athens Olympics. Kiefer's career-high singles ranking was world No. 4, achieved in January 2000. Kiefer returned at the 2007 Gerry Weber Open, losing in the first round to eventual champion Tomáš Berdych. He won the Junior Australian Open, the US Open, and was a finalist and semifinalist at Wimbledon and the French Open finishing as the No. 2 junior behind Mariano Zabaleta when he was 18 in 1995. He was sometimes seen tapping his racquet on the corners of the court after a point, and, when serving, frequently asked for the ball with which he had just won a point to re-use it for the next one.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.