The 28th team in this 32-part series for Yahoo! Sports. Check out the entire piece on this link.

Momentum is a funny thing. It can end in a split second.

Or even double overtime.

The Denver Broncos tied for the league's best win-loss record in 2012 and took an 11-game winning streak into last year's playoffs. But it was all for naught as the eventual Super Bowl champion Baltimore Ravens pulled off a late comeback to tie the game and eventually handed Denver a shocking 38-35 setback.