Polzin: Best Wisconsin players to wear jersey Nos. 40-49.
The NFL's best players by jersey number: Nos. 50-99 - Sports Illustrated
First look: Packers model 50s Classic Uniforms
Inbox: The Packers have left no stone unturned
Super Bowl 2017: Matt Ryan is first QB to wear No. 2 in title game and it's scary
Number (sports) - Wikipedia
The Best Player to Ever Wear Each NFL Jersey Number, News, Scores, Highlights, Stats, and Rumors
Teddy Bridgewater says he'll wear No. 50 for the Lions Every jersey between 0 and 19, the only numbers allowed by the league for a QB, is either already taken by