 Born in Montfermeil, Seine-Saint-Denis, Samassa began his career as a youth with local amateur outfit Red Star Paris.After spending over seven years in the club's youth system, he joined Le Mans Union Club 72 in the next region over initially as an under-18 player.While in the club's academy, he helped the Le Mans youth side win the 2004 edition of the Coupe Gambardella.