Buffalo Bills running back Anthony Dixon (26) breaks away from Denver Broncos outside linebacker Brandon Marshall during the first half in an NFL football game Sunday, Dec. 7, 2014, in Denver. (AP Photo/Joe Mahoney)

Denver Broncos quarterback Peyton Manning throws against the Buffalo Bills during the first half in an NFL football game Sunday, Dec. 7, 2014, in Denver. (AP Photo/David Zalubowski)

The Denver Broncos mascot entertains the fans during the first half in an NFL football game against the Buffalo Bills, Sunday, Dec. 7, 2014, in Denver. (AP Photo/Joe Mahoney)

Buffalo Bills cornerback Corey Graham, right, intercepts a pass intended for Denver Broncos wide receiver Emmanuel Sanders during the first half in an NFL football game Sunday, Dec. 7, 2014, in Denver. (AP Photo/Joe Mahoney)

Members of the Denver Broncos celebrate running back C.J. Anderson's touchdown against the Buffalo Bills during the first half in an NFL football game Sunday, Dec. 7, 2014, in Denver. (AP Photo/Joe Mahoney)

Buffalo Bills quarterback Kyle Orton, left, gets sacked by Denver Broncos outside linebacker Von Miller during the first half in an NFL football game Sunday, Dec. 7, 2014, in Denver. (AP Photo/David Zalubowski)

Denver Broncos wide receiver Wes Welker, right, hauls in a pass in front of Buffalo Bills defensive back Nickell Robey during the second half in an NFL football game Sunday, Dec. 7, 2014, in Denver. (AP Photo/Joe Mahoney)

Denver Broncos running back C.J. Anderson scores against the Buffalo Bills during the second half in an NFL football game Sunday, Dec. 7, 2014, in Denver. (AP Photo/Joe Mahoney)

Denver Broncos running back C.J. Anderson, right, celebrates his touchdown with quarterback Peyton Manning during the second half in an NFL football game Sunday, Dec. 7, 2014, in Denver. (AP Photo/David Zalubowski)

Denver Broncos outside linebacker Brandon Marshall celebrates an interception against the Buffalo Bills during the second half in an NFL football game Sunday, Dec. 7, 2014, in Denver. (AP Photo/David Zalubowski)

Buffalo Bills cornerback Stephon Gilmore, right, intercepts a pass intend for Denver Broncos wide receiver Demaryius Thomas during the second half in an NFL football game Sunday, Dec. 7, 2014, in Denver. (AP Photo/Joe Mahoney)

Denver Broncos running back Juwan Thompson runs against the Buffalo Bills during the second half in an NFL football game Sunday, Dec. 7, 2014, in Denver. (AP Photo/Joe Mahoney)

Denver Broncos cornerback Bradley Roby, left, tackles Buffalo Bills running back Fred Jackson during the second half in an NFL football game Sunday, Dec. 7, 2014, in Denver. (AP Photo/Joe Mahoney)