Complex sentence: The next day, largely upholding Anderson's arguments, MacPhail forfeited the second game to the Tigers 9--0, holding that the White Sox had failed to provide acceptable playing conditions.
Split into simpler sentences: The next day, MacPhail forfeited the second game to the Tigers 9--0. In a ruling that largely upheld Anderson's arguments, MacPhail stated that the White Sox had failed to provide acceptable playing conditions.