Bradshaw suffered a neck injury in last week's win over the San Francisco 49ers. He stayed in the game, recording 95 yards and a touchdown on 19 carries. Bradshaw didn't practice at all this week and there is no timetable set for his return.
Trent Richardson is expected to carry the load for the Colts on Sunday. The Colts acquired Richardson from the Cleveland Browns for a first-round pick before last week's game. He split carries with Bradshaw and was held to 35 yards and a touchdown on 13 carries, but the Colts are expected to give him a workhorse role against the Jaguars. Donald Brown will be Richardson's backup and the only other active running back on the depth chart after the Colts waived Kerwynn Williams.