The "underdog" Yankees came from behind to catch and surprise a powerful Red Sox team on the last two days of the 1949 season, a face-off that fueled the beginning of the modern Yankees–Red Sox rivalry. By this time, however, DiMaggio's career was winding down, and the "Yankee Clipper" retired after the 1951 season. This year marked the arrival of the "Oklahoma Kid", Mickey Mantle, who was one of several new stars to fill the gap.[64]