NASHVILLE, Tenn. (AP) - Tennessee quarterback Vince Young is questionable for Sunday's game against St. Louis after re-aggravating his sore right knee.
Young watched as Kerry Collins took all the first-team reps in Friday's practice. He was originally hurt in last weekend's 27-17 loss at Indianapolis, though tests on the knee came back fine. He tweaked the knee on Thursday.
"He didn't practice today," Titans coach Jeff Fisher said, adding that missing practice "will not have anything to do with whether or not he plays. He understands the game plan and got at least half of the preparation."
Running back Chris Johnson returned to practice fully and will be listed as probable this week, as will receiver Kenny Britt, who also practiced fully after being added to the injury report Thursday with a back injury.
Fullback Ahmard Hall (ankle), tight end Jared Cook (concussion) and receiver Nate Washington (ankle) also both practiced fully and are listed as questionable.
Linebackers David Thornton (rest) and Colin Allred (hamstring) are questionable after limited practice on Friday.
NOTES: The Titans will DE end Eric Bakhtieri from the practice squad to the active roster on Friday and place DT Jason Jones on injured reserve. Jones had shoulder surgery on Wednesday.