According to mlb.com, this is the fourth Cardinals-Red Sox World Series:

1946: Cardinals over Red Sox, 4-3

Once again, the Cards were down, 3-2, before winning the final two games of the series in St. Louis.

Harry Brecheen appeared in three games for the Redbirds (two as a starter) and won all three, including Game 7, which he entered in the eighth.

Harry "The Hat" Walker hit .412 and drove in six runs during the series for the Cardinals, while Enos Slaughter hit .320.

1967: Cardinals over Red Sox, 4-3

St. Louis ended Boston's impossible dream, as they took a 3-1 series lead before holding on in seven.

Bob Gibson was the series' Most Valuable Player, as he had three complete-games victories, including one in Game 7.

Outfielder Lou Brock hit .414 for the Cards during the series, with Roger Maris chipping in a .385 average to go along with seven RBIs.

2004: Red Sox over Cardinals, 4-0
The Sox extracted a measure of revenge by sweeping the Cards as they ended the "Curse of the Bambino" and captured their first championship since 1918.

Larry Walker led St. Louis' hitting attack in the series, as he smacked two home runs and hit .357. Meanwhile, in his first World Series appearance, Albert Pujols hit .333.