Thomas, 27, was selected in the fifth round of the 2010 NFL Draft by the Chargers. Thomas appeared in all 16 games for San Diego last season and totaled 23 tackles and an interception.
Pro Football Focus has him rated as the No. 48 defensive tackle in the league last year. He’s proven to be a pretty decent run-stopper in recent years.
Pittsburgh has already lost Ziggy Hood to the Jaguars and are expected to allow Brett Keisel to sign with a new team, so it makes sense that they would target some defensive linemen to round out their roster.