Packers running back James Starks may be ready to return from a bruised knee sustained on Dec. 2.
One of the staples of a San Francisco 49ers defense that's ranked No. 2 in the NFL in points allowed is the pass-rushing twist with outside linebacker Aldon Smith and defensive lineman Justin Smith against left guards and tackles.
On the call, Justin Smith lines up between the guard and tackle and tries to occupy both by crashing into the tackle and pulling the guard with him, while Aldon Smith loops behind and bursts through the gap at guard. Both Smiths were voted to this year's Pro Bowl, and Aldon Smith finished second in the NFL in sacks with 191/2.
"The key I'd say is for the guard to not let Justin ...