A Pro Bowl pick two years ago, he was not on the injury report the previous two days after missing the preseason because of a left calf problem. Coach John Fox said Jeffery experienced tightness in his hamstring after Thursday's practice.
Linebacker Pernell McPhee (wrist) is also questionable, as is defensive tackle Ego Ferguson (knee). Linebacker Sam Acho (illness), left tackle Jermon Bushrod (back) and cornerback Sherrick McManis are probable, while linebacker Jonathan Bostic (ankle) and cornerback Tracy Porter (hamstring) are out.
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