 In 1985, Bossis moved to the ambitious RC Paris, but the Parisian club achieved only modest success in spite of heavy spending that acquired such players as Enzo Francescoli and Pierre Littbarski.Bossis returned to Nantes for one final season in 1990, lining up next to future French international Marcel Desailly before retiring from play.Bossis was named Footballer of the Year by France Football in 1979 and 1981.