The 2001 World Series, the 97th edition of Major League Baseball's championship series, took place between the Arizona Diamondbacks of the National League and the three-time defending champions New York Yankees of the American League. The Diamondbacks won the best-of-seven series four games to three. This is considered one of the greatest World Series of all time; memorable aspects included two extra-inning games and three late-inning comebacks. It ended on a Game seven walk-off hit in the form of a bases-loaded blooper single off the bat of Luis Gonzalez. This was the third World Series to end in this way, following and . This was also the Yankees' fourth consecutive World Series appearance, after winning it in , , and (the previous year).