Clay Mathews still struggles against run...
Well as brought up before and some dismissed that mathews problems against the run did not exist, and he while a great pass rusher still isn't a complete player yet and can't handle the run very good- here's some food for thought on subject( and why when we play them we need to keep pounding the rock)..
It wasn't entirely clear why the Packers' defense was weak in that direction, but "Sound FX" made clear the Steelers' assessment. At one point, running backs coach Kirby Wilson points to linebacker Clay Matthews
' position on a grease board. Wilson tells backup running back Isaac Redman that the Steelers would target Matthews for the entire game. He doesn't want to take on the run," Wilson said. "He's a pass-rush specialist. He wants to pass rush Mike Vick. He wants to pass rush Matthew Stafford. ... We're going to keep pounding and make this guy quit."
We then see Matthews manning the right side of the Steelers offense, recognizing a formation that suggests the Steelers were planning to run in his direction.
"Watch the power! Watch the power!" Matthews says. At the snap, Steelers guard Chris Kemoeatu pulls toward Matthews and flattens him. Running back Rashard Mendenhall scoots by on his way to a 19-yard run.
Next, Matthews is on the bench shaking his head about the play, noting that he recognized what was coming but lamenting that Kemoeatu is " just a big boy." http://espn.go.com/blog/nfcnorth