Quinton Knight transferred to California State Fullerton from Sam Houston State and played one season for the Titans. He signed as a free agent with the CFL's Toronto Argonauts in 1987 although he never suited up in a regular season game for the club.
In 1988, Knight began a much-travelled career in the Arena Football League by signing with the New York Knights. There was press speculation that Knight would be a territorial pick by the Los Angeles Cobras but they left him unprotected and he was the first lineman drafted by the New York club. Knight finished the year second in the league with 9 quarterback sacks. The New York Knights folded and the AFL had just a 4-game season in 1989 with Knight playing on a resurrected Denver Dynamite club. He compiled 7.5 sacks in his two years with the Dynamite and was named to his third consecutive All-AFL Team in 1990. In 1991, Knight registered 3 sacks while playing for the Orlando Predators.
In 1992, Knight wore this jersey for the Detroit Drive, helping the team to their fourth and final Arena Bowl title. Like many Arena teams during the period, the Drive wore Bike jerseys. Another trademark of early AFL jerseys is the lack of use of nameplates and player names screened directly on the back of jerseys. Knight did not play in 1993 but returned to the field in 1994 with the Massachusetts Marauders, the former Detroit Drive. Knight would finish his career with the Miami Hooters in 1995. Knight totalled 21 QB sacks in 51 games over his AFL career.