2007 Camping World Watkins Glen Grand Prix

Helio Castroneves started on pole, but after leading the first 19 laps, he crashed out under heavy pressure from Scott Dixon.

A brawl broke out and Sam Hornish Sr. had to be physically restrained by IndyCar officials and security.

"I got a run on Tony into Turn 6, but he didn't give me room and ran me up on the curbs," Hornish explained.

"He drives like a champion all the time, but mistakes happen and people should let us talk about it and not get in the middle.

For punching Kanaan and interfering with the intended civil discussion, Sam Hornish Sr. was fined $25,000 and banned from the garages for one race.