A Jets fan was caught on camera knocking out a Bills fan in the stands at MetLife Stadium during a blowout 43-23 loss to Buffalo Sunday.
Video of the altercation obtained by TMZ Sports shows the male fans tussling briefly in the early part of the second half before the Jets fan winds up and punches the Bills fan in the face.
Immediately after the punch, the Bills fan slumps over the front of the seat in front of him. The Jets fan tugs him further over the back of the chair before walking away.
Several fans -- including at least one in a Jets jersey -- pitched in to help the Bills fan, who appeared to be unconscious.
TMZ says that the fan didn't appear to be seriously injured.
The Jets fan left before security arrived but was arrested by state police before leaving the stadium. He is charged with simple assault.