Five key stats: Pittsburgh Steelers
Road woes: The Steelers are averaging 7.7 fewer points and 92.5 fewer passing yards on the road this year than they are at home.
Bell is on a roll: RB Le'Veon Bell has three straight games with 100+ rush yards (longest streak of career).
Airing it out:Ben Roethlisberger has 12 TD passes this of 20+ air yards this year. No other NFL QB has more than eight.
How 'bout that defense!: Since Week 11, the Steelers are allowing 10.0 PPG (fewest in NFL) and 251.0 total yards per game (fewest in NFL).
Five key stats: Buffalo Bills
Dichotomous offense: Buffalo averages 161.9 rush yards per game (1st in NFL) and 181.5 pass yards per game (32nd in NFL).
Tyrod's regression:Tyrod Taylor had a 99.4 passer rating last season, but his passer rating this season is 84.6.
Dual-threat QB:Taylor leads all NFL QBs in rush attempts (73) and rush yards (469).
Allowing too many points: Buffalo's defense has allowed 28.6 points per game since Week 8 (4th-most in NFL).