The day Peyton Manning finally looked old, NFL
Denver Broncos - Wikipedia
Inconsistent' Drew Lock starting for Denver in Week 16, Pro Football Talk
Week 6 Snap Judgments: Broncos unbeaten, but no thanks to Manning - Sports Illustrated
Broncos Colts final score: Colts spoil Peyton Manning's homecoming 39-33 - Mile High Report
Broncos beat Chiefs: 7 reactions to Kansas City's first loss - Arrowhead Pride
Peyton Manning falls victim to Father Time as Denver Broncos lose to Indianapolis Colts - Sports Illustrated
Peyton Manning isn't Trent Dilfer — he's much worse than that
B/R Gridiron - Peyton Manning is a legend. #MakeHistory
Broncos show fight, but fall short in loss to Chiefs
Peyton Manning's First Broncos Game! (Steelers vs. Broncos 2012, Week 1)