ALAMEDA -- A day after fortifying their offensive line, the Raiders appear to be turning their attention to defense.
Unrestricted free agents Justin Tuck (New York Giants) and outside linebacker LaMarr Woodley (Pittsburgh Steelers) will visit the Raiders, according to an ESPN report.
According to multiple media outlets, the Raiders added offensive linemen Rodger Saffold and Austin Howard Tuesday, the first day of free agency, as well as re-signing running back Darren McFadden.
Tuck, 6-foot-5, 268 pounds, is 30 years old but is coming off an 11-sack season. He is a two-time Super Bowl champion and two-time Pro Bowl player who reportedly is giving thought to returning to the Giants. He has 60 ½ career sacks.
At present, the Raiders have none of their starting defensive linemen under contract. Right end Lamarr Houston signed with the Chicago Bears Tuesday, while tackles Vaughn Walker and Pat Sims and left end Jason Hunter are all unrestricted free agents.
Woodley, 6-foot-2, 256 pounds, is an outside linebacker in Pittsburgh's 3-4 defense who could be used to rush the passer in Oakland's predominantly 4-3 alignment. Woodley has 57 career sacks, although he hasn't reached double figures since 2010.
With the Steelers, Woodley has reached one Pro Bowl and has one Super Bowl championship.
Linebacker is one of the few positions the Raiders are fairly well stocked on the roster, as starting strong side linebacker Sio Moore, middle linebacker Nick Roach and weak side linebacker Kevin Burnett are all still under contract, as is Miles Burris, a starter as a rookie in 2012.