This fan was too serious. Tennis Hall of Famer John McEnroe was clearly frustrated during a tense encounter with a tenacious ...

Tempestuous tennis champ John McEnroe was caught on video earlier this week telling an autograph-seeking fan, but many believe the athlete was right to do so.

John McEnroe is known for his temper. The iconic U.S. men's tennis star, who now serves as an announcer for the sport for ...