The team has placed CB Curtis Brown on Injured Reserve today. Brown suffered an ACL injury on Sunday, and Coach Tomlin announced yesterday that he was done for the season. To fill the available roster spot, the team has promoted CB Isaiah Green from the practice squad as I expected.
CB Devin Smith has been signed to the available practice squad opening. Smith was brought in by the team during training camp and has been on and off the practice squad this season. You can see more about his comings and goings here: http://thesteelersfans.com/?s=Devin+Smith.