Conversation so far:
How did Lionel Conacher do in his professional career?
Lionel Conacher scored the first goal in Pirates history on American Thanksgiving Day Thursday November 26, 1925, against the Boston Bruins.
Did Lionel Conacher win any championships?
An outfielder on the team, Lionel Conacher and the Maple Leafs won the International League championship then defeated the Louisville Colonels to win the Little World Series.

Question: Who did they play for the championship?
Self-contained rewrite: Who did the Maple Leafs play for Little World Series championship?