Chad Johnson calls his return to football “a joy”

For decades, the CFL has served as a periodic curiosity for Americans.  At one point, the Canadian equivalent of the NFL invaded the contiguous 48, with a quintent U.S. teams including the short-lived “Baltimore CFL Colts.” The NFL revved up the litigation engine, and the “CFL Colts” became the “Baltimore Football Club” in 1994 and…