A classic matchup awaits at Heinz Field.
The franchise that brought the NFL the Steel Curtain instead has become an offensive machine. And the team that once featured the Orange Crush has revitalized its powerful defense, if not the nickname.
When the Steelers host the Broncos on Sunday in the only game of Week 15 matching teams with winning records, the league's most potent offense in recent weeks faces off with a D that has been the NFL's stingiest.
The Broncos are allowing a league-low 4.3 yards per play, while the Steelers are averaging an NFL-best 6.4 yards per play.
Denver's 44 sacks lead the league. Steelers quarterback Ben Roethlisberger is averaging 332 yards passing, tops in the NFL.
Add in that Denver hasn't lost in Pittsburgh since 1997 and that the Steelers have won nine straight games in December. Or that the Broncos, even with Peyton Manning still sidelined — but somewhat closer to returning while Brock Osweiler gets his fifth career start — can clinch a playoff berth with a victory and the AFC West with a win and at Chiefs loss at Baltimore.
Meanwhile, the Steelers are in a tight race for an AFC wild card and still have an outside chance at catching Cincinnati in the AFC North.