He appeared slightly less due to injury in the following season, which ended in immediate relegation back, but brought the conquest of the Coupe de France, the club's first-ever (he played the full 90 minutes in the final against Bastia).
Dia sedikit kurang bermain karena cedera di musim berikutnya, yang berakhir pada degradasi langsung kembali, tetapi membawa kemenangan di Coupe de France, untuk pertama kalinya bagi klub (ia bermain 90 menit penuh di final melawan SC Bastia).