John McEnroe - Wikipedia

John Patrick McEnroe Jr. (born February 16, 1959) is a retired American tennis player, often considered among the greatest in the history of the sport.[a] He was known for his shot-making artistry and volleying skills, as well as his confrontational on-court behavior that frequently landed him in trouble with umpires and tennis authorities.

McEnroe attained the No. 1 ranking in both singles and doubles, finishing his career with 77 singles and 78 doubles titles; this remains the highest men's combined total of the Open Era. He won seven Grand Slam (also referred to as Majors) single titles, including four US Open titles and three Wimbledon titles, and added nine men's Grand Slam doubles titles. He made the finals of the French Open once and only played the Australian Open twice during the peak years of his career, his best result being making the semi-finals. He also excelled at the year-end tournaments, winning eight singles and seven doubles titles, both of which are records. Three of the singles year-end championship's were at the Masters Grand Prix (the ATP year-end event) and five were at the World Championship Tennis (WCT) Finals, an event which ended in 1989. Since 2000, there has been only one year-end men's singles event, the ATP Finals (the new name for the Masters Grand Prix). He was named the ATP Player of the Year and the ITF World Champion three times each: 1981, 1983 and 1984.

McEnroe contributed to five Davis Cup titles for the U.S. and later served as team captain. He has stayed active in retirement, often competing in senior events on the ATP Champions Tour. For many years he has also worked as a television commentator during the majors.