With 35 on final rosters, practice squads, injured lists and commissioner's exempt list. From what I can tell, this counts only guys who finished their careers at U-M so if you included Ryan Mallett, Thomas Rawls and Blake Countess, Michigan would've tied for eighth with 38: http://www.ncaa.com/news/football/a...most-represented-2017-nfl-opening-day-rosters
