NASHVILLE, Tenn. (AP) The Tennessee Titans are already thin at linebacker, and now starter Avery Williamson is questionable for Sunday's game against the Miami Dolphins with an injured hamstring.

Williamson was hurt late in last week's 14-13 loss to the Buffalo Bills while on punt coverage. He did not practice Wednesday and was limited Thursday and Friday.

''It's progressing a little each day,'' Williamson said Friday. I guess we'll find out tomorrow. I'll have to see how I feel after today, but it's still a little sore,'' Williamson said.

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The Titans (1-3) lost rookie outside linebacker Deiontrez Mount to a torn ACL in Wednesday's practice. Coach Ken Whisenhunt says the Titans will promote a linebacker to the active roster Saturday, choosing between either Justin Staples or Jason Ankrah.

Cornerback Perrish Cox did not practice Friday with tightness in his hamstring. Cox is questionable against Miami along with defensive tackle Sammie Hill (right knee) and tight end Anthony Fasano (concussion).

Left tackle Taylor Lewan, limited the past two days, practiced fully Friday with a pinched nerve in his left shoulder. He is probable along with right guard Chance Warmack (right knee), cornerback Cody Riggs (knee) and both safety Michael Griffin and tight end Chase Coffman, who each missed one day of work this week due to personal reasons.

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