The Chicago Bulls were a professional American football team that competed in the first American Football League in 1926. Owned by Joey Sternaman (brother of Chicago Bears co-owner Dutch Sternaman), the Bulls also had AFL founders C. C. Pyle and Red Grange as shareholders (Pyle and Grange were also the co-owners of the New York Yankees and the Los Angeles Wildcats of the AFL). Joey Sternaman was also the coach and blocking back for the Bulls throughout their brief existence.
The newly minted Bulls had adverse effects on the more established NFL. First, the Bulls leased Comiskey Park, forcing the Chicago Cardinals to play in the (older and much smaller) Normal Field. Second, the Bulls made an offer for Cardinals star Paddy Driscoll that the reigning NFL champions could not match (Cardinals owner Chris O'Brien arranged a trade with the Bears, who did match the Bulls' offer to Driscoll, keeping him in the established league but knocking the Cardinals out of championship contention). Failing to sign Driscoll, the Bulls built up their roster by signing up men who played their college football in the American Midwest.
Despite playing in front of 16,000 people in their first home game (against the Yankees on October 17, 1926), the Bulls were generally a poor attraction despite the star power of Joey Sternaman. Most of the Bulls games – both at home and away – were played in front of 4000 people or fewer. Attendance at Bulls games were often a reflection of the drawing power of their opponents. The team's first game (at Newark) was played in front of only 2000 people in Davids' Stadium on September 26; the Bulls played the last three official games of the American Football League: in front of 15,000 in Yankee Stadium on November 28 against the Yankees, in front of 3000 in Comiskey Park on December 5 against the Wildcats, and in front 8000 in Comiskey Park on December 12 against the Yankees. With the conclusion of the last game, the AFL – and the Chicago Bulls – became history, and Sternaman returned to the Chicago Bears.