Steelers released DE Aaron Smith. It was only a matter of time. Turning 36 in April, Smith had managed to suit up for just 15 of 48 games the past three years, failing to finish the season in four of the past five. The 2004 Pro Bowler was due $2.1 million, and the Steelers are still working to free up salary cap space in case RFA Mike Wallace draws a strong offer from another team. It's not clear if Smith will be welcomed back a reduced rate.