Students will submit their requests in late July for the upcoming season.
Rafferty was an All-American offensive lineman for the Nittany Lions.
"Penn State enters this new era of college sports in a position of strength and ready to attack this new collegiate landscape."
Polydor is the third cornerback commit for Penn State in the 2026 recruiting class.
Colangelo joins the Nittany Lions after six years with Villanova.
Eziuka joins the No. 4 2026 class in the country, per 247 sports.