Marat Mubinovich Safin (Russian: Мара́т Муби́нович Са́фин, IPA: [mɐˈrat ˈsafʲɪn]; Tatar: Марат Мөбин улы Сафин; born 27 January 1980) is a Russian retired world No. 1 tennis player and former politician. He achieved the Association of Tennis Professionals (ATP) world No. 1 singles ranking on 20 November 2000. Safin is also the older brother of former WTA world No. 1 player Dinara Safina. They are the only brother-sister tandem in tennis history who have both achieved No. 1 rankings. Safin began his professional tennis career in 1997, and held the No. 1 ranking for a total of 9 weeks between November 2000 and April 2001. He won his first Grand Slam title at the 2000 US Open, defeating Pete Sampras in the final, and won the 2005 Australian Open, defeating Lleyton Hewitt in the final. Safi