This one should be fairly easy, at least the list of possible players is short and simple to research if you go that route.
Only once in major league history have three future Hall of Famers made their big league debuts on the very same day. Who are those three Hall of Famers who played in their very first MLB game on the same day?
Only once in major league history have three future Hall of Famers made their big league debuts on the very same day. Who are those three Hall of Famers who played in their very first MLB game on the same day?