On the day the ATP announced a new commercial partnership with the French car maker Peugeot, the world No 1 Novak Djokovic explained how he went back 600 years to the days when tennis was known as Jeu de Paume (French for: game of the palm of the hand) to film a commercial for Peugeot earlier this year. In the commercial, Djokovic wakes up to find himself playing a medieval match against an evil prince. The Serb clearly enjoyed dressing up and acting.