Riding legends the real McCoy for aspiring jockeys Former Grand National champions Bob Champion, who battled back from cancer to win the race, and AP McCoy, who broke nearly all the bones in his body before triumphing in the world's greatest steeplechase, give some advice to young racers at the Ascot racecourse as they ride Shetland ponies over mini Grand National fences. The mini-jockeys will compete at Olympia Horse Show 'Race Night' on December 21. IMAGES AND SOUNDBITES