NEW YORK -- Pittsburgh safety Troy Polamalu, the 2010 NFL Defensive Player of the Year, has been fined $10,000 for talking on a cell phone while in the bench area.

Possession of cell phones in the bench area during a game is prohibited beginning 90 minutes before kickoff through the end of the game.

Steelers coach Mike Tomlin said Polamalu was calling his wife to assure her he wasn't seriously injured after he was taken out of last week's game against the Jacksonville Jaguars. He sustained what the team called a "very mild" concussion and was removed as a precaution.