The Red Sox lost their American League East division lead to the Yankees in August, and now they're locked in a battle for the AL wild card. Although they never led the division by more than two and a half games, this season could go down as one of the worst collapses in franchise history because preseason expectations were nothing short of a World Series championship. But Boston isn’t the only town that has seen a collapse. Take a look at some of the biggest collapses in baseball history, dating back to the “shot heard ‘round the world.”