In real life, Khalil Mack would never strike Derek Carr.

Then again, in real life, those two wouldn’t ever face off like two Raiders fans donning their jerseys did Sunday.

But there was a tussle between Raiders fans at Oakland Coliseum — which went viral — during the team’s 35-28 loss to the Falcons.

A man in a Carr jersey did some fake karate moves before knocking the sunglasses off the guy in a Mack jersey. The latter approached the former and landed a left-handed hook, then a right-handed jab.

Some guy in a Charles Woodson jersey jumped into the fight in the middle and then ran away.

As a big fan of Woodson, I say shame on that guy. The other two dudes, too, for that matter.

https://twitter.com/GAFollowers/status/777711114624704513

Oh, and another fan conflict was captured on video — in L.A., between fans from opposing teams.

During the Rams’ 9-3 win over the Seahawks, a man wearing a Russell Wilson jersey jawed with a Rams fan before being attacked by a group of Angelinos.