Sampras's only real weakness was on clay courts, where the slow surface tempered his natural attacking serve-and-volley game. His best performance at the French Open came in 1996, when he lost a semifinal match to the eventual winner, Yevgeny Kafelnikov. Despite his limited success at Roland Garros, Sampras did win some significant matches on clay. He won a 1992 clay court tournament in Kitzbühel, defeating Alberto Mancini in the final. He won the prestigious Italian Open in 1994, defeating Boris Becker in the final, and two singles matches in the 1995 Davis Cup final against Russians Andrei Chesnokov and Yevgeny Kafelnikov in Moscow. Sampras also won a 1998 clay court tournament in Atlanta, defeating Jason Stoltenberg in the final.