1926 American Football League season

The 1926 AFL season was the only season of the first American Football League. It started with nine teams, with the initial game of the season being played in front of 22,000 fans in Cleveland, Ohio, but by the end of the season (December 14, 1926), only four teams were still in existence: three teams owned or subsidized by league founder C. C. Pyle and star Red Grange (New York Yankees, Los Angeles Wildcats, and Chicago Bulls) and league champion Philadelphia Quakers.

Source: Wikipedia — 1926 American Football League season (CC BY-SA 4.0)