Tackle Jonathan Martin chose to retire on Monday and the Panthers responded on Tuesday by adding a pair of players at the position.
The team announced that they have signed Tony Hills and Davonte Wallace while also releasing running back Darrin Reaves.
Hills was a fourth-round pick of the Steelers in 2008 and played four games for them in 2010 before moving on to stints with the Broncos, Colts and Cowboys. He started one game for Indianapolis in 2012 and saw action in four contests for the Cowboys last season. Wallace spent time with the Dolphins as an undrafted rookie last year, but has never played in a regular season game.
The new arrivals join Michael Oher, Mike Remmers, Nate Chandler and fourth-round pick Daryl Williams on the depth chart. Oher and Remmers are projected to be the starters come September.
Reaves ran for 78 yards on 31 carries and caught five passes in six appearances with Carolina last season.
