David Nalbandian (born 1 January 1982) is an Argentinian former professional tennis player. Nalbandian has won 11 ATP titles including the season-ending 2005 Tennis Masters Cup (forerunner of the ATP World Tour Finals). He reached a highest singles ATP ranking of No. 3 on 20 March 2006.
Nalbandian began playing tennis at age five when his Iranian grandfather built a cement court in his backyard, that's why he had a preference for fast surfaces, unlike other Argentinian players, who prefer clay courts. Once in a TV show, when asked about his success at 2002 Wimbledon Championships, where he reached the final, he joked that his run-up had been due to grass growing on the court his grandfather had once built. As a junior player, he won the 1998 Junior US Open singles against Roger Federer and the 1999 Junior Wimbledon doubles titles.