Steelers LB Harrison, S Polamalu miss practice
{{#rendered}} {{/rendered}}Pittsburgh Steelers linebacker James Harrison and safety Troy Polamalu were both held out of practice on Thursday.
Harrison sat out the entire preseason and Pittsburgh's season-opening loss to the Denver Broncos with a left knee injury.
Polamalu missed practice with a calf issue, while tackle Max Starks (illness) and linebacker Stevenson Sylvester (knee) were also unable to practice.
{{#rendered}} {{/rendered}}Running back Rashard Mendenhall, who tore the anterior cruciate ligament in his right knee during Pittsburgh's final game of the 2011 season, fully participated in practice.