Clay Matthews played out of his mind this season but it wasn't enough to earn him the honor of top defensive player this season. Just another storyline for Sunday's game.

Now that the voters have chosen Troy Polamalu over Clay Matthews for The Associated Press 2010 NFL Defensive Player of the Year award, the two stars can prove their worth against each other on the field.

In the Super Bowl.

Pittsburgh safety Polamalu received 17 votes Monday from a nationwide panel of 50 media members who cover the league, edging Green Bay linebacker Matthews by a hair — two votes.

Despite missing two games, in which Pittsburgh went 1-1, Polamalu became the sixth Steeler to win the award. He had seven interceptions this season along with 63 tackles, but made his mark with big plays. In a late-season victory at Baltimore, his leaping tackle forced a fumble that set up the winning touchdown.

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