"[I] just thought the second half was our best half of defense this year against a good offensive team."
The Nittany Lions remain undefeated to open the season.
Rucci comes from Wisconsin with two years of eligibility remaining.
"To me, college basketball was about The Palestra on a Saturday afternoon, and it could be 10ยบ outside, but it was always hot."
Mayer spent one year at Wisconsin and has no recorded appearances or statistics.
Beamon was the third Nittany Lion to announce his return.