Linebacker Rob Jackson is scheduled to visit the Raiders early next week as the Raiders continue their wide-ranging search to revamp their defense.

Jackson, 28, played mostly special teams and as a reserve linebacker during his six seasons with the Washington Redskins.

However, he also flashed as a potential starter when he filled in for 14 games in 2012.

The Raiders are set at all three linebacker spots, with 2013 starters Kevin Burnett, Nick Roach and Sio Moore under contract for 2014. The Raiders also added veteran linebacker LaMarr Woodley via free agency Thursday.

Jackson played in only 10 games his first three seasons. He appeared in 44 of 48 games the past three seasons. Fourteen of his 15 starts came in '12.

Already, the Raiders signed four players that are expected to compete for starting jobs next season.

Defensive end Justin Tuck, defensive lineman Antonio Smith and cornerback Tarell Brown are the others besides Woodley.