Quick, name a famous Belgian. Sort of falls off after Tintin and Jean Claude Van Damme, doesn’t it? But to his cycling mad countrymen and women, Tom Boonen is a household name. Trouble is that the three-time winner of the Paris-Roubaix classic is now mostly famous for his failings. He has tested positive for cocaine for the third time and the 28-year-old is battling to save his career.