Truth or Throck Talking NFL Football

There are two true stories and one story made up by Tim Throckmorton.

Can you figure out which is which?

Tim has stories about the NFL Championships in 1921 and how George Halas pulled a fast one, about a how a stolen bicycle ended up with the Lions in Detroit, and the combining of Pittsburgh and Philadelphia in the NFL during World War II.

Only one of those stories is false.

Take your shot.