NOTES: The Bills had four sacks, pushing their season total to 33, including a career-high five by DE Jerry Hughes. ... Buffalo WR Stevie Johnson left with a groin injury and did not return. ... Pittsburgh rookie S Shamarko Thomas left in the second quarter with an ankle injury and did not return. G Ramon Foster also left with an ankle injury and did not return. ... Bell's 34-yard reception was the third longest by a Pittsburgh running back in the last seven years. ... Cotchery has six touchdown receptions this season, tying his career high.