Sergio Andres Roitman (born 16 May 1979) in Buenos Aires, Argentina, nicknamed 'Escopeta' (Shotgun in Spanish) is a retired professional tennis player from Argentina.He achieved a career-high rankings of World No. 62 in singles in October 2007 and World No. 45 in doubles in September 2008.He has no main tour singles titles, but has won several Challenger and Futures singles titles in his career. In addition Roitman has won two ATP doubles titles - at Amsterdam in 2000 and Umag in 2001.