A three-time All-Western Athletic Conference selection, Junior Ah You was drafted by the New England Patriots in the 17th round (425th overall) of the 1972 NFL Draft. He opted to sign instead with the CFL's Montreal Alouettes as they intended to use him at his college position of defensive end while the Patriots planned to convert him to a linebacker. Ah You played in 129 regular season games with the Alouettes in ten seasons with the team, played in five Grey Cups (winning in 1974 and 1977) and was named a CFL Eastern All-Star four times and a league All-Star on two occasions (1976 and 1979). Ah You left the Alouettes following the 1981 season after the team reportedly squandered money owed to him (and other veterans) during Nelson Skalbania's disastrous brief ownership of the club.
The head coach of the new USFL's Chicago Blitz, George Allen, flew to Hawaii to lure him back to the field as a rush end. Ah You spent 1983 with the Blitz and moved to the New Orleans Breakers in 1984. From studying game film, this jersey is from the second set of Breakers jerseys used in the final few home games of the 1984 season and has a different font than the first set the team used. In 1985, Ah You returned to Sun Devil stadium as a member of the Arizona Outlaws where he retired for good mid-season playing for his college coach, Frank Kush. In the USFL, Ah You totalled 11.5 sacks with the Blitz in 1983, 9 sacks with the Breakers in 1984 and 1 with the Outlaws in 1985.
Ah You was inducted into the Arizona State University Sports Hall of Fame in 1984 and the Canadian Football Hall of Fame in 1997. His #77 jersey was retired by the Alouettes and his name was added to Arizona State's Ring of Honor in 2012.