The Dallas Cowboys and Oakland Raiders held a joint practice on Tuesday in Oxnard, California.
Things got heated at one point, and a brawl broke out involving players from both teams. A helmet got knocked off, and at one point, the fight got dangerously close to where fans in attendance were standing.
Cowboys-Raiders brawl after Mo Claiborne puts TE Mychal Rivera on his back and barks to crowd. Whole Dallas D and Oakland O involved. — Tim MacMahon (@espn_macmahon) August 13, 2014
Another fight with cowboys offense. Raiders defense. Practice ended
— Clarence Hill (@clarencehilljr) August 13, 2014
Luckily, no one was injured and practice resumed soon after the fight was broken up.
UPDATE: An Instagram user (sc_spitta) recently posted a video which appears to show a fan hitting a player with a Raiders helmet which he somehow managed to obtain.