A French pole vaulting champion has posted a video of himself running naked with his pole through the streets of Paris in a bid to attract new sponsors.   In his video, Mesnil is seen naked, running with his pole as if preparing for a vault, in Paris tourist spots like Montmartre and the pedestrian Pont des Arts bridge crossing the River Seine by the Louvre museum. In shots where he is seen from the front, a small black square covers his private parts. The cheeky stunt has drawn him global attention.