Polamalu has remained healthy this season, and now has 56 tackles and two interceptions in 13 games.
Heyward has come on strong lately, and now has 46 tackles and four sacks on the season, both of which are personal bests.
Worilds now has 56 tackles and seven sacks on the season, both of which are career-highs with three games remaining.
Pittsburgh's defense held Miami to just 10 points in the first half, but probably got an assist from the snowy weather. After halftime, the Dolphins were able to rack up 24 points, on three touchdowns and a late field goal to ice the game.
Miami's offense picked up 360 yards in the game, and turned the ball over just once on an interception by Ryan Tannehill. Polamalu picked Tannehill off deep in Dolphins territory in the third quarter and returned in 19 yards for a score. Tannehill was also sacked three times by the Steelers, a low total given the Dolphins' offensive line troubles.
The Steelers DST unit disappointed this week, and could have another difficult matchup in Week 15, with the Bengals on the way. The Bengals put up just 20 points in an early-season matchup against the Steelers, but are coming off a 42-point outburst this week.