Malzberg, Barry N. "Allegro Marcato"
Divergence: c 1875 CE
What if: Arturo Toscanini was uninterested in music as a child, and after immigrating to America, worked the San Francisco docks and learned baseball.
Summary: "Art Tosca" manages the NY Yankees during four straight World Series championships, despite violent arguments with a slumping Babe Ruth in 1927.
Published: In By Any Other Fame (eds. Mike Resnick and Martin H. Greenberg), q.v.; and In the Stone House, q.v.