Keith Srakocic, Associated Press
Pittsburgh Steelers linebacker James Harrison tosses a ball around before practice at the NFL football team's facility on Wednesday, Jan. 4, 2012 in Pittsburgh.

PITTSBURGH — The veterans on the Pittsburgh Steelers defense are revving up for one last run.

The defending AFC champions will begin their quest for a seventh Lombardi Trophy in Denver on Sunday with a lot of the faces that have led the team to three Super Bowl appearances since 2005.

Several of the veterans understand this could be their final playoff push together, and they could be getting healthy at the right time. Linebackers LaMarr Woodley and James Harrison have only played on the field at the same time sporadically since early October due to injuries.

Woodley has spent the last two months dealing with a strained left hamstring while Harrison missed a month with a fractured orbital bone and was later suspended a game for a series of illegal hits.