Bull riders storm United Center

March 7, 2011 5:17:32 AM PST
The bulls were running wild at the United Center over the weekend, but they had nothing to do with basketball.

The Professional Bull Riders Association rode into the United Center this weekend for two days of competition.

It's the first time such an event has ever taken place at the United Center.

About 40 riders took part in the competition on Sunday.

The Professional Bull Riders Association is the world's largest bull-riding organization.