How Andre Agassi's Dad Interrupted a Crucial Point Against Pete Sampras (VIDEO)

Andre Agassi's father didn't attend many of the tennis star's matches. It was Mike Agassi's attempt to not distract his son or make him nervous. But he still managed to cause an outrageous scene during a tournament clincher against Pete Sampras.

First, Mike alarmed security when he showed up without a ticket, Agassi explained on 'Jimmy Kimmel Live' (weeknights, 12:05AM ET on ABC). An official sat Mike in the front row, but the tennis pro remained oblivious to his presence. Just when Agassi had the (rare) chance to break Sampras' serve, a phone started ringing in the audience.

"[Sampras is] about to serve -- phone goes again," said Agassi. "'Hey, are you gonna ever answer your phone?'" Sampras screamed. "All of a sudden, my dad's head pops up. And he goes, 'It's my F'in phone, I'll answer it if I damn well please. Kiss my a--!'"