Trévisan started his professional career at Guingamp, where he was their number two goalkeeper, first behind Angelo Hugues then behind Ronald Thomas.
His good performances when he did get into the starting eleven convinced his manager to make him the number one goalkeeper the following year, Porato having returned to Monaco.
Ultimately, Trévisan decided to give up his spot in the team and to let young keeper Damien Gregorini play the final nine games of the season.
This led him to sign for Sedan, where he only got to play nine games, as, despite his excellent performances, he could never displace local icon Patrick Regnault.
Angry at this treatment he judged unfair, Trévisan left Sedan after just one year to go back to his first club, Guingamp.