Mats Wilander is one of the most successful and influential tennis players of all time. He won seven Grand Slam singles titles, including three French Open titles and three Australian Open titles. He also won two Grand Slam doubles titles and
From Wikipedia
Mats Arne Olof Wilander is a Swedish former professional tennis player. He was ranked as the world No. 1 in men's singles by the Association of Tennis Professionals (ATP) for 20 weeks, including as the year-end No. 1 in 1988. Wilander won 33 career singles titles, including seven majors, and seven career doubles titles, including a major in men's doubles at Wimbledon.