The Broncos have signed running back Lance Ball and defensive lineman Carlton Powell to the practice squad.

Those players replace running back Darius Walker(notes), who was released, and defensive lineman Everette Pedescleaux, who was placed on the practice squad injured list Tuesday.

Ball was released from Tennessee’s practice squad Oct. 27.

Powell was selected by the Broncos in the fifth round of the 2008 draft. He was released by Cleveland’s practice squad Oct. 20.