Dixon is the second player to join the Nittany Lions through the transfer portal this month.
"At some point, we will emerge from the pandemic, and we need to be ready to move decisively forward, guided by a vision that inspires all of us."
Stevens converted two free throws Saturday night in the Cleveland Cavaliers' win over the Sixers.
Chris Godwin and Miles Sanders each scored a touchdown in the penultimate week of the NFL's regular season.
International students with extenuating circumstances can begin moving back into the dorms on January 4.
The defensive end is currently projected as a first-round pick by many.