Seahawks need Tatupu to hold his ground

The Steelers defied the odds and earned a trip to Detroit by winning three straight playoff games on the road. The Seahawks, meanwhile, protected their home turf and finally gave their long-suffering fans something to brag about.

Both teams have solid defenses, strong running games and quarterbacks who have taken their games to the next level. Who has the edge on Super Bowl Sunday? As always, the outcome likely will turn on a few key matchups. Here are five to keep an eye on in this game:

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