Derek Carr will miss two to six weeks with a transverse process fracture in his back.

Jack Del Rio said Carr's injury "could be as short as two weeks -- it could be longer." 

Carr was injured on a sack late in the third quarter of Week 4.

"He said he's sorry," Del Rio said of Carr. "Great kid. He'll bounce back. I told him that the team will take care of business while he's healing and just get healed up and when he can come back, he'll come back."