The Steelers ' best defensive player , Heyward missed the final 11 games of the 2015 season with a pectoral injury .
After Timmons , 27 - year - old defensive end Cameron Heyward is the old man of the crew , a first - round pick in 2011 .
The Steelers ' best defensive player , defensive end missed the final 11 games of the 2015 season with a pectoral injury .
After Timmons , 27 - year - old defensive end Cameron Heyward is the old man of the crew , a first - round pick in 2011 .