: Chris Claiborne - Detroit Lions - Sports Illustrated

In the 1960s, on the heels of the Greatest Game Ever Played, professional football began to flourish across the country--except in Texas, where college football was still the only game in town. But in an unlikely series of events, two young oil tycoons started their own professional football franchises in Dallas the very same year: the NFL's Dallas Cowboys, and, as part of a new upstart league designed to thwart the NFL's hold on the game, the Dallas Texans of the AFL.