With the season opener just two weeks away and Chris Johnson nowhere in sight, Tennessee Titans coach Mike Munchak might be thinking about adding another running back. Johnson missed all of training camp during a contract holdout and still hasn't reported, leaving the Titans with third-year pro Javon Ringer and fourth-round draft pick Jamie Harper as their top running backs. But Ringer likely won't play in Thursday night's preseason finale at New Orleans because of a hip injury, marking the third consecutive game he will have missed. Harper is still an inexperienced rookie, although he has 146 yards and three touchdowns on 36 preseason carries. So the Titans could be looking for help. "I think it will come down to the running backs we have," Munchak said Sunday, one day after the Titans defeated the Chicago Bears 14-13 at LP Field. "What shape is Ringer in? That will be a factor in this whole thing. Jamie, we have confidence in -- more confidence than we thought we would have at this point, than we would normally have in a rookie. But like I said before, if we have two guys, and if Chris is not with us for whatever reason, then yes, we are going to have to obviously do something there." Source: NFL.com