WATCH LIVE
Raiders Head Coach Jack Del Rio says Derek Carr has a fracture in his back.
"It could be as short as two weeks - it could be longer," said Del Rio.
Carr is expected to be out for at least two to six weeks.
This story will be updated.
Police bust driver with mannequin passenger in carpool lane
Rep. Schiff's luggage stolen during car break-in at SF parking garage
Couple breathing new life into historic Dos Palos Theater