Novak Djokovic and Lleyton Hewitt have withdrawn from Thursday's Guinot-Mary Cohr exhibition in Paris, with Djokovic saying he is tired, L'Equipe reports. Djokovic just played three consecutive weeks in winning Belgrade, Madrid and Rome. Hewitt has just returned from surgery. The exhibition will now feature Jo-Wilfried Tsonga against Nicolas Mahut and Andy Murray against Michael Llodra.