Miami Open champion Jakub Mensik, 19, and 18-year-old Brazilian Joao Fonseca are two teenagers McEnroe could envision breaking into the Alcaraz-Sinner rivalry, as well as big-serving American Ben Shelton.

McEnroe, no stranger to love-hate relationships with fans throughout his career, said some supporters resent seeing Djokovic collect 24 Grand Slam titles, surpassing the achievements of Roger Federer and Rafael Nadal.

John McEnroe says Roger Federer and Serena Williams are "irreplaceable" but that tennis "goes on no matter what" as the Swiss prepares to play his final match on Friday.

Nick Kyrgios has lived up to his reputation as one of the bad boys of tennis at Wimbledon but he is just the latest in a long line of controversial characters. The Australian, who takes on Novak Djokovic in Sunday's men's final, has made waves at the All England Club this year with his antics, including spitting in the direction of fans and calling for third-round opponent Stefanos Tsitsipas to be disqualified.

John McEnroe says he would have been better off never trying to compare Serena Williams to men's tennis players after the furor over his remark that she would rank "like 700 in the world".

Tennis legend and former tormentor of umpires John McEnroe will coach Canadian world number nine Milos Raonic.