Question: What is the nationality of this professional footballer who was sold to Chelsea during the 2004–05 Olympique de Marseille season?
Sentence (from "2004–05 Olympique de Marseille season"): Olympique de Marseille had a disappointing season, with three managers passing by en route to a fifth-place finish in Ligue 1 and two premature domestic cup exits.
Relevant evidence: No