how many grand slams did stanislas wawrinka win
Stanislas Stan Wawrinka (French: [vavÊiÅka]; born 28 March 1985) is a Swiss professional tennis player currently ranked world No. 3 in men's singles by the Association of Tennis Professionals (ATP). Wawrinka is a three-time Grand Slam tournament winner, Olympic champion and Davis Cup champion for his country. He achieved a top-10 ranking by the ATP for the first time on 12 May 2008, and reached a career peak of world No. 3 on 27 January 2014, at the same time as he became the Swiss No. 1.