Breer: Week 1 picks
Albert Breer provides his predictions for the opening week of the season, giving one rookie quarterback a road win. More ...
"The knee didn't feel too good," Harrison said Friday, via Mark Kaboly of the Pittsburgh Tribune-Review. "They want to let it rest and see if rest will help it and make the decision when the game comes."
But Harrison might be too optimistic.
Any lingering knee issue for Harrison, who's 34, should be viewed as a significant big-picture concern for the Steelers.