The Facts: Griffith tore the ACL in his right knee late in the third quarter of Sunday's loss to the Ravens. He stayed in the game for a few plays and managed to score Oakland’s only touchdown on a 2-yard catch. He was hit hard by Ray Lewis on the play and knocked out of the game.

Diehards Line:An MRI on Monday determined the severity of the injury. Oakland will place Griffith on injured reserve and look to sign another fullback. The only healthy fullback on the roster is Luke Lawton. Interim coach Tom Cable said moving tailback Michael Bush to fullback, a position he worked at briefly in training camp, was an option, but that the team would probably have to bring someone in this week.