The Facts: Jennings will be joining the Raiders, he said on Twitter Wednesday night. Earlier Wednesday, Jennings worked out for Oakland, the running back said.

Diehards Line: Jennings, who rushed for 283 yards on 101 carries in 2012 for Jacksonville, will compete for a backup role for the Raiders. The 6-1, 228-pound tailback has gained 944 yards in four NFL seasons, all with the Jaguars and mainly as a backup to Maurice Jones-Drew. Jennings missed the 2011 regular season with a knee injury. Justin Forsett and Montell Owens are among the Jaguars’ tailback options behind Jones-Drew. In Oakland, Jennings will help provide depth behind Darren McFadden.