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Ai Sugiyama (杉山愛 Sugiyama Ai, born July 5, 1975, in Yokohama) is a Japanese professional tennis player. She turned professional in 1992. In her career so far, she has won 6 singles titles and 36 doubles titles, including three Grand Slam women's doubles titles (1 with Frenchwoman Julie Halard-Decugis and 2 partnering Belgian Kim Clijsters). Ai is coached by her mother and plays a game based on her fitness and speed, utilizing an aggressive serve and volley whenever feasible.