Mark Kaboly of the Tribune-Review Tweeted the news Thursday afternoon.
Legursky hit Seahawks LB Al Woods in the back in the third quarter. The play was given a 15 yard personal foul penalty. It came after a nice pass-and-catch to RB Rashard Mendenhall, who had cut back just as Legursky was coming in to block Woods. Legursky led with his shoulder low into Woods. It appears Legursky was lining up to hit Woods on the side, but Legursky failed to change his aim in time.
It looked more like poor technique than dirty play.
Legursky is the second Steeler to receive a fine this year, and it's the second consecutive week the league has issued fines for Steelers players as well as their opponent. After Week 1, Troy Polamalu and Brandon Ayanbadejo were both fined $15,000 for horse collar tackles, and reported earlier today, DE Raheem Brock of the Seahawks was fined for a low hit on Steelers QB Ben Roethlisberger.
Scott Brown of the Tribune-Review reported Legursky plans to appeal the fine.