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"): With striker Didier Drogba being sold to Chelsea, and replacements Habib Bamogo and Péguy Luyindula not performing at a similar level, the goal-scoring went dry, but in spite of scoring two points less than the previous season, l'OM finished two positions above the previous season.
Relevant evidence: Yes