The 18-year-old impressed during the encounter, and was given special praise by Fulham skipper Danny Murphy in his post-match interview.
"I was delighted to hear that I was man of the match. My family were here to celebrate with me so I had a good evening," Frei told the club's official website.
"Danny Murphy came over with the champagne in the dressing room and told me that I'd got it so I was very happy."
Frei joined the club from Grasshopper in 2010.