51 Best John McEnroe Quotes “You Can Not Be Serious”

John McEnroe Quotes from his book “You Can Not Be Serious”. It is almost 40 years from now, this line “You Can Not Be Serious” became popular in the game of tennis. That was the line when John McEnroe screamed at the Wimbledon umpire while disputing a line call. John McEnroe has been labled as superbrat by … Read more