Police in AT&T Stadium had to subdue a few guys in the stands Sunday night during the Dallas Cowboys and Philadelphia Eagles game.

The viral video shows a Cowboys fan punching an Eagles fan in the stands, but we did not know at the time the video was uploaded is that the fans are actually BROTHERS!!! Yes, one brother knocked out his own brother while feuding at the game.

Police in the stadium quickly responded to altercation and arrested the three brothers. One of the combatants even spat blood on a police officer and he is being charged with assault on an officer.

How would you like to be at their upcoming Thanksgiving celebration? To fight at a game is one thing, but to knock out your brother? C'Mon Man!!!

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