The jersey, which was first worn by Jonathan Sutherland, is given to a player who is a "tough, disciplined, dependable, physical leader."
"They're all trying to make sure we're the best we can be."
Drew Allar and Nick Singleton will likely lead the quarterback and running back rooms, respectively.
Fashanu and King join 10 other Big Ten representatives, the most of any conference.
The Nittany Lions were all smiles as they posed for their annual team picture day.
Mickens is the first commit of the Nittany Lions' recruiting class of 2026.