Steelers S Troy Polamalu aggravates calf injury

Pittsburgh Steelers safety Troy Polamalu left Sunday's game against the Philadelphia Eagles in the first quarter after aggravating his strained right calf.

Polamalu limped off the field following a fumble by Philadelphia quarterback Michael Vick. The team said Polamalu's return was questionable, but the 2010 NFL Defensive Player of the Year watched the entire second quarter from a seat on the bench and did not move. He was replaced by backup Ryan Mundy.

Polamalu missed each of Pittsburgh's previous two games after injuring the calf in a season-opening loss in Denver.

The Steelers also lost linebacker LaMarr Woodley with a strained right hamstring. His return was questionable.