Broncos Grades

OFFENSE

DThe Broncos took the lead in the first quarter Sunday, but two interceptions by quarterback Trevor Siemian doomed their chances of regaining it in the fourth quarter. A big letdown after their performance a week ago against Dallas.

DEFENSE

BThe Broncos held Buffalo to 10 total yards in the first quarter and racked up four sacks of quarterback Tyrod Taylor. But they were gashed during the second half — and Von Miller’s unsportsmanlike conduct penalty was the dagger that kept Buffalo’s victoryclinching drive alive.

SPECIAL TEAMS

CBrandon McManus nailed all three of his fieldgoal attempts. But a failed fake punt by Denver in the third quarter put the Bills in position for their third field goal of the game, extending their lead to 23-16.

COACHING

CDenver’s defense held its own throughout the first half, but the telegraphed fake punt and struggles in the red zone and on third downs reflected on the coaching.

GAME BALLS

Shelby Harris: His sack in the fourth quarter stalled a Buffalo drive that could have ended with a score after Trevor Siemian’s second interception.

Jamaal Charles: The veteran tailback scored his first touchdown as a Bronco and led the team with 56 yards rushing on nine carries. Brandon McManus: He was perfect on fieldgoal attempts — 38, 35 and 28 yards — on a day when there were few bright spots for the Broncos, who fell to 2-1.