Arnauld Mercier

Born in Bayeux, Mercier began playing football for Ligue 2 side Rouen in 1990. After three seasons the club were relegated to the Championnat National, and he left for another third-tier club, Fécamp. Mercier spent three seasons with Fécamp and the following two with Valenciennes, continuing to play in the Championnat National. In 1998, Mercier moved to Italy, joining Serie A side Reggina. He was unable to work his way into the first team and went on loan to Serie B sides Andria, Savoia and Cosenza. Disappointed, he returned to France and played two more seasons for Valenciennes.

After he retired from playing, Mercier began coaching the youth side of Valenciennes. He was appointed manager of Belgian side Royal Boussu Dour Borinage in April 2011. On 2 January 2019, Mercier returned to Seraing United, this time as a sporting director.