Crawford is being shifted to defensive tackle in camp, Todd Archer of ESPN Dallas reports.

He's had a hard time staying healthy in his NFL career, but Crawford should see more snaps this year backing up Tyrone Crawford at the three-technique than he would as part of a crowded rotation at defensive end.

Raiders signed fifth-round DE Jack Crawford, sixth-round DT Christo Bilukidi, and seventh-round LB Nathan Stupar to four-year contracts.