Stanislas "The Manislas" Wawrinka (born 28 March 1985 in Lausanne) is a Swiss professional tennis player. His career ranking high is 9, achieved on 9 June 2008.
He considers clay his best surface, and his backhand his best shot. He won the gold medal for Switzerland in the men's doubles event at the 2008 Summer Olympics in Beijing, partnering Roger Federer, by beating Swedish team Simon Aspelin/Thomas Johansson in the final. They were also honoured with the 2008 Swiss Team of the Year Award.
John McEnroe believes Wawrinka has one of the most powerful backhands he has ever seen and describes him as having "the best one-handed backhand in the game today".
Source : Wikipedia.com