Complex sentence: Traditionally, the game was played on Thanksgiving Day in Philadelphia, Pennsylvania, but now alternates between Philadelphia and Ithaca, New York, as the last game of the regular season for both teams through 2017.
Split into simpler sentences: Traditionally, the game was played on Thanksgiving Day in Philadelphia, Pennsylvania, but now alternates between Philadelphia and Ithaca, New York. The rivalry was the last game of the regular season for both teams through 2017.