P ITTSBURGH -- The Pittsburgh Steelers defense is now worrying about a significant injury as outside linebacker Alex Highsmith went down during one-on-one drills at training camp. According to head coach Mike Tomlin, Highsmith suffered a groin injury, but the severity of it is unknown. Right now, they're waiting for more results.

Steelers rookie FB DJ Thomas-Jones has returned to practice after being carted off the field last week at training camp.

That said, the rookie has hit a bump in the road. Per Nick Farabaugh of PennLive, Kent was seen wearing a walking boot on Sunday after not practicing Saturday. It does appear that Kent’s best shot at making the roster will be if he wows in the return game.