Henderson (6-7, 335) spent his first eight seasons with the Jaguars, but was released this past offseason and was looking for a new home.
While with the Jags, Henderson and Marcus Stroud made a solid 1-2 punch, but now both are gone as Stroud was moved to the Bills.
Henderson, 31, is a two-time Pro Bowler and has recorded 329 and 29 sacks in 124 games played. Although he is past his prime, he is still a very capable defender against the run—an area where the Raiders have struggled mightily for the past seven seasons.
The Raiders have made done quite a bit to try to address the D-line and trying to stop the run, as they selected middle linebacker Rolando McClain and defensive tackle Lamarr Houston with their first two picks in the draft.