John McEnroe s Bad Boy McEnroe

In 1977, McEnroe won the French Open in junior men's singles, while he teamed up with compatriot Mary Carillo to win the French Open senior doubles title. In the same year, he made it all the way from Wimbledon to the semi-finals of the senior men's singles, where he lost to compatriot Connoels, the best result of a qualifier at a Grand Slam.

In 1978, McEnroe won his first year-end championship and helped the United States win the Davis Cup for the first time.

In 1979, at the age of 20, McEnroe won his first Grand Slam men's singles title, the US Open, beating compatriot American Vitas Geulaitis, the winner of the Australian Open in December 1977, 7-5, 6-3, 6-3 in straight sets, to become the youngest US Open men's singles title since the Open era, until Sampras broke it in 1990. He won 10 men's singles titles on tour that year and helped the United States win the Davis Cup for the next consecutive year.

In 1986, McEnroe couldn't stand the pressure and didn't play on the ATP Tour for six months. During his period with the American actress Tatum O'Neal is married (they divorced in 1992) and has three children: Kevin, Sean and Emily.

He made a comeback at the end of the year and won three men's singles titles on tour, but he was no longer as brave as he was in the early '80s.

With the rise of a new generation of serve-and-net players such as Becker and Edberg in the mid-80s, McEnroe has largely lost his competitiveness in the men's singles Grand Slam tournaments.

McEnroe, who did not win any men's singles titles on tour in 1987, did not compete in the seven months following the US Open, including two months for misconduct and foul language during the tournament and was fined $17,500.

Since 1986, McEnroe has not reached the peak of the early 80s, and has been denied the finals of three Grand Slam men's singles tournaments by his long-standing rival Lundl, including the quarterfinals of the 1987 US Open, the fourth round of the 1988 French Open and the quarterfinals of the 1989 Australian Open, which also became the final men's singles champions at the 1987 US Open and the 1989 Australian Open.

In 1989, McEnroe defeated world No. 1 Lendl in the men's singles tournament at the WCT Finals in Dallas and eventually won the title. He also reached the semi-finals of Wimbledon in the men's singles, where he lost to defending Swedish star Edberg in straight sets (5-7, 6-7, 6-7).

He also won the men's singles title at the RCA Championships in Indianapolis. He also reached the men's singles final of the Canadian Open (Montreal Toronto), losing to Columdale and winning the runner-up.

The controversy never left McEnroe, who was disqualified from the tournament after he abused the referee and tournament supervisor in the fourth round of the 1990 Australian Open men's singles against Sweden's Mikael Pernfors, as well as intimidated the female lineman on duty and broke his racket.

In the same year, he reached the semi-finals of the US Open men's singles, where he was defeated by the eventual champion of the tournament, compatriot Sampras. In the men's singles final in Basel, he defeated the former Yugoslav player Ivanisevic, who was still a rising star at the time, in five sets.

In 1991, he won the last men's singles title of his career, beating his brother Patrick McEnroe in sets 2-1 (3-6, 6-2, 6-4) in the final in Chicago.

In 1992, he reached the semi-finals of Wimbledon Men's Singles, where he was defeated by the eventual champion of the tournament, American Agassi. But in doubles, he teamed up with last year's Wimbledon men's singles champion Sticker (Stig) to win the men's doubles title. In the same year, he teamed up with his teammates from the U.S. team (including Sampras, Agassi and Courrell (Currieh) to win the title in the Davis Cup final, beating Switzerland 3-1.

McEnroe is more interested in representing his country in the Davis Cup than any other player on the professional tour, having represented the United States in the Davis Cup on several occasions. McEnroe also helped the United States win two World Team Cups (1984 and 1985). He represented his country in the Davis Cup for 12 years (1978-84, 1987-89, 1991, 1992) and led the U.S. to five Davis Cup titles.

41 singles and 59 singles and doubles victories remain the Davis Cup record to this day. He also won the title in 1982 with a perfect record of 12 singles and doubles wins (with Peter Fleming in doubles), a second player who has not yet been able to do so.

In 1978, they beat England 5-0 in the final

In 1979, they beat Italy 5-0 in the final

In 1981, they beat Argentina 3:1 in the final

In 1982, they beat France 4:1 in the final

In 1992, they beat Switzerland 3:1 in the final

Note: The Davis Cup is the annual world team championship for men's tennis, which is the highest level of team competition in international tennis.

American tennis player and four-time national singles champion in 1984. Together with Peter Fleming, he is a world-famous doubles partner, having won the doubles championship three times in 1979, 1981 and 1984. Singles champion three times at Wimbledon (1981, 1983, 1984).

John McEnroe, born on February 16, 1959 at the U.S. Air Force Base in Wiesbaden, Germany, honored as "the emperor of tennis, the bad boy of tennis, and the big McEnroe", is a retired American male tennis player, the highest world ranking in singles and doubles and the world's No. 1 at the same time, 7 Grand Slam men's singles laureates, and a member of the International Tennis Hall of Fame.

McEnroe was the ATP world No. 1 in singles and doubles (the singles rankings first reached the top on 3 March 1980). He won 875-198 in singles and 530-103 in doubles. He is in the middle of his career.

He has won 77 ATP Tour singles titles (third in history) and 71 doubles titles, making him the player with the most singles and doubles titles in ATP history (148). He was the ATP World No. 1 singles player for 170 weeks in 1980-85, and was the ATP World No. 1 singles year-end World No. 1 for four consecutive years (1981-84) and the ITF World Champion for three years (1981, 1983 and 1984). He is the first ATP player to earn more than $10 million in prize money, bringing his career total to $1,255,2132.

McEnroe, along with three other contemporaries Connaughles, Borg and Lendl, is widely regarded as one of the greatest opponents in men's tennis history; In fact, McEnroe and these three arch-rivals competed for world No. 1 and Grand Slam at a fever pitch at the time of men's tennis. McEnroe also helped the United States win two World Team Cups, 1984 and 1985, and he also helped the United States win five Davis Cups. In 1999, he was inducted into the International Tennis Hall of Fame.

He was ranked 11th in the 2005 Tennis Magazine's list of the 40 Greatest Players.