Penn State fell to 0-5 in conference play with a loss to Illinois.
Penn State will play 10 games, solely against Big Ten opposition, in the 2021 spring season.
"It is with excitement and gratitude that I announce my retirement from professional soccer."
Coronavirus concerns within Rutgers' program forced the postponement.
Bowens is the third Nittany Lion to transfer away from the program this offseason, joining Antonio Shelton and Judge Culpepper.
Ferry was fined and publicly reprimanded after discussing a technical foul he received against Purdue Sunday.