The offensive line replaced three players who were drafted after the 2023 season.
In just one season with the Nittany Lions, Kotelnicki is already revered by his players.
Hudson, who is the Nittany Lions' first transfer portal addition, scored a touchdown against Penn State this season.
"Beau Pribula did not want to leave our program, and he did not want to leave our program until the end of the season."
Allar's news came after backup Beau Pribula announced he will enter the transfer portal.
Beau Pribula is out. Grunkemeyer is in.