Bertrand played as a defender in the Football Combination Reserve league against Plymouth Argyle in March 2011.
He had been with Auxerre since 2006 but was  looking for a new club.


"Daniel Nardiello bagged a hat-trick as an Exeter City reserve side that included three trialists routed Plymouth Argyle 7-0.

Nardiello was joined on the score sheet by Scott Bennett, Billy Jones and James Norwood in a one sided game at St James` Park.

The three players trialling for City were goalkeeper James Wood and defenders Kallum Keane and Bertrand Mignot"

Born in Rouen on the 25th of August 1991, he played youth football with Auxerre from 2006 to 2009, moving to play with Quevilly the following season.

After his trial at Exeter he signed for Oissel for the 2011/12 season, playing nearly 50 games for them in defence, moving to play for Sotteville in 2016. He then returned to his hometown club, Football Club de Rouen for 2017/18 season.