A member of the Dallas Cowboys, second from left, is...

A member of the Dallas Cowboys, second from left, is thrown to the ground by St. Louis Rams tight end Jared Cook during a scuffle as fans hold up a picture of Rams owner Stan Kroenke during a joint NFL training camp, Tuesday, Aug. 18, 2015, in Oxnard, Calif. Credit: AP / Mark J. Terrill

OXNARD, Calif. -- The Cowboys and St. Louis Rams cut short the second of two joint practices at training camp after several fights broke out, including one where Dallas receiver Dez Bryant was punched in the face.

Tuesday's practice at the Cowboys' camp facility ended about 30 minutes earlier than expected after the skirmishes on the field where the St. Louis offense and Dallas defense were scrimmaging.

The Houston Texans and Washington Redskins ended the mixed portion of a practice on Aug. 8 after several fights on both fields.

The third fight between the Cowboys and Rams included the punch on Bryant and ended the practice. It wasn't clear who threw the punch. Dallas cornerback Tyler Patmon, who fought with Bryant earlier in camp, had several red marks on his face.

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