A brawl during Tuesday's joint practice between the Dallas Cowboys and Oakland Raiders featured a brief altercation between a fan and Dallas cornerback B.W. Webb.

The unidentified Raiders fan hit Webb in the back twice with his hand and a third time with a helmet before the second-year cornerback reacted. Webb swiped at the fan with his right hand as the brawl broke up.

"Two teams going after it and happened to be some fans, too," Webb said. "Hey man, it happened. I wasn't expecting that. But whoever jumped on my back, I had to get them off. Hey, you got to let them know, man, the only thing protecting you is this fence."