Raiders quarterback Derek Carr is still not quite ready to get back on the playing field, but that doesn't mean he's missing workouts. An ESPN report from the scene in Oakland Thursday noted that Carr "went through stretch and threw the ball at the start of practice." Carr officially was listed as a limited participant at practice Thursday after sitting out Wednesday's session. Carr exited Sunday's loss to the Denver Broncos in the third quarter with a back issue. The team later announced Carr suffered a transverse process fracture and replaced him in the lineup with backup EJ Manuel.