The Rams lost their game Saturday, and at least one of the fans lost a considerable amount of blood watching it happen … after an insane brawl broke out in the stands.

Fans squared off during the Rams/Chargers game at SoFi Stadium in Inglewood during a preseason game.

The game was close and tension in the stands was palpable during the second quarter. You see two fans square off … first just jawboning and then the fists start flying, leaving the face of one of the dudes bloodied.

It’s unclear what security was doing, but it took them a LONG TIME to mosey over and break up the fight.

The guy in the white shirt — the one throwing the punches — was escorted out and the game continued.

The Rams lost 13-6.