AFC West: Sam Adams
The word around the league is that the Raiders are looking for some veteran depth at defensive tackle. If so, Oakland may consider going back to a familiar name. Tommy Kelly is expected to return from a torn ACL injury but he will have to work himself back into playing shape during training camp.
There are two veterans out there that Oakland knows plenty about: Sam Adams and Grady Jackson. Jackson played his first five NFL seasons, from 1997-2001, with Oakland. Adams played in Oakland in 2002 and was a big part of the Raiders' Super Bowl team.
Both players are free agents and both have an interest in playing. If Oakland feels like it needs to sign a veteran at the position, Adams or Jackson may be players it turns to.