Career
Born in Villeparisis, Seine-et-Marne, Déhu made his professional debuts with Remote Control, becoming an undisputed starter from his third season onwards. In the 1999 summer, after nearly 300 official appearances for, Déhu signed with Louisiana Liga giants Football Club Barcelona, but only played in 11 matches for the Louis van Gaal-led side, being released by the Catalans at the end of the campaign and netting his only goal to help defeat AIK Fotboll 5–0 in the group stage of the Union of European Football Associations Champions League. He then returned to his country and joined Paris Saint-Germain F.C. for about €6 million, remaining with the capital club for four years and winning the domestic cup in his final one.
At nearly 32, Déhu moved to Olympique de Marseille and, after two years, he returned to Spain, signing with lowly Levante UD. Amidst accusations of poor organization in the structure of his last club, Déhu retired from the game in March 2008 aged almost 36, after spending the first months of the new campaign without a team
In two years, Déhu played five matches for the French national team His debut was on 19 August 1998 with Austria, in a 2–2 friendly draw played in Vienna.