Running back Joseph Addai sat out Wednesday and Thursday's practices, but returned to the field on Friday and is one of 14 Indianapolis Colts players who are listed as "Questionable" for Sunday's game against the Tennessee Titans.

After missing the Colts' Week 6 loss to the Cincinnati Bengals with a hamstring injury, Addai suffered a new hamstring injury during the team's 62-7 loss to the New Orleans Saints on Sunday night. If Addai is unable to play, 2011 fourth-round pick Delone Carter and 2009 first-round pick Donald Brown would share the rushing duties on Sunday.

Carter leads the Colts with 259 yards and two touchdowns on the ground this season, while Brown, once considered a bust, is averaging 5.5 yards on his 22 rushing attempts, all of which have come over the last three games. The Titans defense ranks 24th against the run this season, allowing an average of 124.5 yards per game.

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