Almanzor sprang a 20-1 surprise to give trainer Jean-Claude Rouget his second win in the French Derby at Chantilly.

The Gurkha was slashed in the ante-post market on the Investec Derby after justifying the decision to supplement him for the French 2000 Guineas by powering away with the Poule d’Essai des Poulains at Deauville.