On Dec. 6, 1925, the Pottsville Maroons beat the runner-up Chicago Cardinals at Comiskey Park 21-7 in what was widely believed to be the NFL championship game. At the time, the NFL was struggling to survive while college football was king. Pottsville then played the Notre Dame Four Horsemen in an exhibition game in Philadelphia. Experts believed the fledgling NFL was still decades away from competing with college football. But on a last-second field goal the Maroons helped legitimize the NFL by beating Notre Dame 9-7.
Before the game the Frankford Yellow Jackets, the team that would later become the Eagles, protested to the NFL saying the Maroons were violating their “territory.” (The Maroons had beaten the Yellow Jackets, 49-0, to earn the right to play Notre Dame at Shibe Park, later Connie Mack Stadium.) Although no territory rule was ever produced and the Maroons had two affidavits from men who witnessed the phone conversation in which the Maroons’ owner was granted permission to play the game from the league, the NFL upheld the protest and suspended the Maroons, making them ineligible for the championship they had earned on the field. Read More From ESPN