With Williams, the Red Sox reached the 1946 World Series, but lost to the St. Louis Cardinals in seven games in part because of the use of the "Williams Shift", a defensive tactic in which the shortstop moves to the right side of the infield to make it harder for the left-handed-hitting Williams to hit to that side of the field. Some have claimed that he was too proud to hit to the other side of the field, not wanting to let the Cardinals take away his game. His performance may have also been affected by a pitch he took in the elbow in an exhibition game a few days earlier. Either way, in his only World Series, Williams gathered just five singles in 25 at-bats for a .200 average.