Raiders FB Manase Tonga underwent offseason knee surgery. There are no details on the surgery, though the Raiders do expect Tonga to be ready for training camp. He won't be guaranteed a roster spot behind starter Marcel Reece.

Raiders promoted FB Manase Tonga from the practice squad. Tonga will fill in for starting FB Marcel Reece on Sunday if he can't get his ailing ankle loose in pre-game warmups. A second-year undrafted free agent out of BYU, Tonga has never appeared in an NFL game.