Clay Matthews got knocked out of the game on a vicious blindside block

The Philadelphia Eagles and Green Bay Packers are looking like they'll be involved in a shootout, but the Packers will have to try and play some defense without the help of Clay Matthews. He took a nasty hit on this blindside block from Eagles lineman Allen Barbre.

And the hit was so vicious it sent Matthews back to the locker room to get checked on.

Clay Matthews having shoulder looked at after huge hit by Allen Barbre; obviously not a good sign for porous #Packers D.

— Tom Pipines (@pipspicks) November 29, 2016