Mats Wilander, born August 22, 1964 in Växjö (Sweden), is a tennis player having won seven Grand Slam titles (Australian Open in 1983, 1984 and 1988, French Open in 1982, 1985 and 1988, and US Open in 1988) and three (?) Davis Cup finals. He was ranked #1 in the world between September 1988 and January 1989.
He officially retired in 1996, now competing occasionally on the senior tour. He coached Marat Safin during the 2001 season.
In the 1982 Davis Cup quarter-finals, Wilander lost to John McEnroe in a six-hour-and-22-minute, five-set marathon (7-9, 2-6, 17-15, 6-3, 6-8). It remains the longest Davis Cup match in history.