Rosen and his family have been to Pennsyvlania a few times unofficially. He also had some interest from Rutgers, Iowa State, William & Mary, Washington State, Georgetown, Virginia Tech, Stanford, Gonzaga, and Seton Hall.
"He is a coach on the floor," Jaklitsch said. "He hustles and plays hard all the time. He is going to be a great player for Pennsylvania."
Jaklitsch also said: "He has deceptive speed and quickness."
Rosen is a gritty and tough lead guard. The lefty has the ability to dart past defenders too and kick the ball out to open teammates.