Both teams agreed to postpone the game.
The true freshman played in 29 games for Penn State.
Mahaffey has spent three years in the Big Ten, one of which at Penn State.
The Philadelphia native enters the portal after one season at La Salle where he averaged 7.7 points and 5.8 rebounds.
Goodman was the Nittany Lions' top recruit in the class of 2024.
The Nittany Lions lost their first game in Big Ten play.