The Pittsburgh Steelers open their 2012 regular season slate with a game in Denver against the Broncos. The contest has plenty of story lines and things to watch for when the action starts. Not the least of those items is that the last time the Steelers played a meaningful game, they lost to these same Broncos.
Here's a look at five keys to Sunday night's game for the Steelers, who begin their 80th season with Super Bowl aspirations once again.
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