John McEnroe had rivalries with other tennis players.
Björn Rune Borg ( [ bjœːɳ bɔrj ] ; born 6 June 1956 ) is a Swedish former world No. 1 tennis player widely considered to be one of the greatest in tennis history . Ivan Lendl ( [ ˈɪvan ˈlɛndl̩ ] ; born March 7 , 1960 ) is a former world No. 1 professional tennis player and is currently coaching current world No. 1 Andy Murray , alongside Jamie Delgado . James Scott Connors ( born September 2 , 1952 ) is an American former world No. 1 tennis player , often considered among the greatest in the history of the sport . John McEnroe . McEnroe is known for his shot-making artistry and volleying skills ; for his rivalries with Björn Borg , Jimmy Connors and Ivan Lendl ; and for his confrontational on-court behavior , which frequently landed him in trouble with umpires and tennis authorities .