Momentum can be fickle and fleeting in the postseason, where a game, a series and ultimately a season can turn on one pitch, one hit, one play.
For the 2004 Boston Red Sox, it was the Dave Roberts’ stolen base that sparked a ninth-inning comeback against the New York Yankees in Game 4 of the American League Championship Series.
The Red Sox became the first team to erase a three-games-to-none deficit and win a seven-game series and went on to sweep St. Louis for their first World Series championship since 1918.