the Champions Stakes at Ascot will retire immediately if he wins the Grand National . He rides favourite Shutthefrontdoor in the £1m race on Saturday . The champion jockey won the famous race on Do n't Push It in 2010 .
AP McCoy will retire immediately if he wins the Grand National . He rides favourite Shutthefrontdoor in the £1m race on Saturday . The champion jockey won the famous race on Do n't Push It in 2010 .