Raiders' Jason Campbell likely out for season with broken collarbone

(CBS/AP) - One of the best football stories of the season has been the gritty play of the Al Davis-less Oakland Raiders. But all the grit in the world can't fight a broken shoulder. So it goes for Raiders quarterback Jason Campbell, who broke his collarbone in Oakland's win over the Cleveland Browns on Sunday.

Campbell landed hard on his shoulder in the second quarter after a hit from Cleveland linebackers Chris Gocong and Scott Fujita. Campbell stayed down on the turf after the hit and was then helped to the locker room. "I'm not going to let this football team blink," coach Hue Jackson said after the 24-17 victory. "We'll miss Jason for a little while. I have no idea how long it will take. I don't know. We'll see as we go."

In all likelyhood, Campbell is out for the season. According to some reports, the Raiders are trying to fill their gap in the QB position with Carson Palmer. Yahoo! Sports' Jason Cole cites a source that claims the Raiders are "trying hard" to make a deal with Cincinnati for Palmer.

Palmer has been spending the season at home, after refusing to play for the Bengals.

Oakland's other options are the unreliable Kyle Boller, and the untested Terrell Pryor who is coming off a 5-game suspension.

Campbell has completed 60.6 percent of his passes for 1,170 yards with six touchdowns and four interceptions this season. Campbell is in the final year of his contract.