Perin, who is owned by Genoa, underlined his ability with a string of fine saves in the shock 2-0 win.
"It was an exceptional result," Bergodi told Radio Anch'io Lo Sport. "However, we only stayed in the game because of Perin.
"Mattia is a great 'keeper, but he is one of our youngsters and with players of this age it is not easy to escape relegation.
"He, however, is doing well - even if his displays can be a little inconsistent.
"He's an interesting kid, who has great qualities and who could have a great career ahead of him."