Will Power goes toe-to-toe with Scott Dixon after Road America crash (VIDEO)

Will Power is known as one of the most mild-mannered guys in IndyCar. But when he gets mad, HE GETS MAD!!

Such was the case Saturday at Road America during practice. Dixon had slowed to the right side of the race track and after letting Romain Grosjean bye, the six-time IndyCar champ apparently didn't see Power closing fast from behind and to his left.

Power, the Australian, couldn't avoid Dixon, the New Zealander, and they were involved in a massive wreck that heavily damaged their cars.

Here's video of the incident as well as Power's lack of anger management: