Ken Rosewall

Kenneth Robert Rosewall is an Australian former world No. 1 professional tennis player. Rosewall won 147 singles titles, including 23 majors: a record 15 Pro Majors and eight Grand Slam tournaments. He also won 15 Pro Majors in doubles and nine Grand Slam doubles titles. Rosewall achieved a Pro Slam in singles in 1963 by winning the three Pro Majors in one year, and completed the career Grand Slam in doubles.