ASU football stadium brawl goes viral [VIDEO]: Fan kicks student in the face, 'old man got what he deserved' at University of Arizona game [WATCH]

Arizona State University fans love their football. Sometimes, things get a little wild in the stadium - especially when ASU faces a rival school like the University of Arizona. Check this viral video out... 

An unidentified man literally KICKS an ASU fan sitting in the student section in the FACE.

The older guy was probably a U of A fan - he was wearing blue (the school's colors) among a swarm of yellow-clad Sparky supporters at the Sun Devel Stadium.

But according to TMZ insiders, the students got the last laugh (er, punch) once the camera shut off:

"The old man was yelling at some undergrads and some girls. He was told to 'shut his mouth.' The old man took offense. He kicked. He then got what he deserved. He was destroyed."

Apparently "[the old man] and his redneck family were kicked out." The ASU fans were allowed to stay in the stadium.

Oh - ASU crushed U of A 58-21.