"It was 1927 in reverse when the Pirates and Yankees took batting practice yesterday at Forbes Field. Dick Stuart's bombs were falling all over Schenley Plaza, behind the left-field wall. The Yankees had been batting for 20 minutes before anybody hit one out of the park. There's a legend that in 1927 the Yankees shell-shocked the Pirates with their batting-practice home runs. It's a fact that they won the Series in four games. Whether the home runs they hit in batting practice made any difference is open to question."
January 1, 1970
https://en.wikiquote.org/wiki/1960_World_Series