In Game 4 on October 6, 1957, Eddie Mathews’ two-run shot off Bob Grim with one out in the bottom of the tenth inning at County Stadium gives the Braves a 7-5 victory, and knots the Fall Classic at two games apiece.
The Milwaukee third baseman becomes the third major leaguer, joining Tommy Henrich (1949) and Dusty Rhodes (1954), to end a World Series game with a walk-off home run.
The Milwaukee Braves would go on to win the World Series over the Yankees. Their only one while in Milwaukee.
Eddie Mathews
The History of the Atlanta Braves 