Tennessee Titans Brian Callahan expresses concern about position group

The Tennessee Titans entered training camp with a concern about the defensive line, as the group lacked depth — and things have only gotten worse recently thanks to some injuries.

Thankfully, the three starters, Jeffery Simmons, T'Vondre Sweat and Sebastian Joseph-Day, are all healthy, but the Titans lost Marlon Davidson (biceps) for the season and TK McLendon (toe) is dealing with turf toe.

Fellow depth options Keondre Coburn and UDFA Isaiah Iton have played well during the preseason, but that doesn't mean Titans head coach Brian Callahan isn't still worried about the group.

Not only did he admit he is "concerned" over the defensive line, he said the team will be exploring ways they can add to it before the start of the season.

While they won't be of high quality, the Titans are set to see an influx of defensive linemen hit the waiver wire and free-agent market in the coming week, as teams will cut their rosters down to 53 players on Tuesday, Aug. 27.

After that, the Titans will have a little over one week until their regular-season opener, which falls on Sunday, Sept. 8, against the Chicago Bears.