Major brawl breaks out at joint practice between NFL's Rams and Bengals

Los Angeles Rams star Aaron Donald repeatedly swung a helmet at Cincinnati Bengals players in a brawl between the two teams Thursday, putting an early end to their joint practice session.

Players threw fists and helmets during scuffles leading up to the final free-for-all. Donald, a three-time AP Defensive Player of the Year and eight-time Pro Bowler, was thrown to the ground after swinging a helmet.

Bengals coach Zac Taylor downplayed the event, saying: "Emotions run high. We've been working together for two days now, and that's just some real competitive guys getting into it."