As expected the Steelers also announced a practice squad move this morning as safety Damon Cromartie-Smith was released from the 8 man practice squad and running back Tristan Davis was signed to take his spot. The Steelers signing of Davis is due to the injuries to Rashard Mendenhall and Mewelde Moore. Mendenhall has a strained hamstring while Moore has a bad ankle. Davis will be used this week to emulate Titans running back Chris Johnson in practice. Cromartie-Smith had been originally signed by the Steelers as an undrafted free agent last season and he spent all of 2010 on the practice squad.