The Pittsburgh Steelers defensive isn't expected to get much help this weekend.
Linebacker James Harrison and safety are unlikely to play against the Oakland Raiders this Sunday, according to an ESPN.com report, though the team will have a better idea about Polamalu on Friday. The Steelers have their bye in Week 4.
Harrison hasn't played since the Steelers lost to Denver in the playoffs. Polamalu (calf) was hurt in a season-opening loss to the Broncos.