When it comes to crushing losses, there are different kinds of disappointment. There are games where your team is clearly overmatched yet fight valiantly, maybe even offer a few glimmers of hope before ultimately falling to the superior team. And then there are the games where they play well enough to win but make just enough mistakes to leave the door open a crack and the other team eventually takes advantage to pull out a win. That one is by far the worst.
It also best describes the Pittsburgh Steelers season ending 23-16 loss to the Denver Broncos in the Divisional Round of the NFL Playoffs.