Posted by ESPN.com's Bill Williamson
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.