Williamson rides Edredon Bleu Norman Williamson has been handed the plum spare ride on Edredon Bleu in the BBA Peterborough Chase at Huntingdon on Saturday.Jim Culloty - trainer Henrietta Knight`s number one jockey - has chosen to ride the stable`s rising star Best Mate in the First Gold Cup at Ascot, leaving the mount on Edredon Bleu, who is bidding to win the Peterborough for the fourth year running, up for grabs.Tony McCoy, who won the Queen Mother Champion Chase on Edredon Bleu in 2000, is unavailable.Jim Lewis, who owns both Edredon Bleu and Best Mate, said: 'I understand from Terry (Biddlecombe) that Norman came down and sat on Edredon this morning.'I`m going to go to Huntingdon with Edredon Bleu. He`s the horse who`s done it all before and I would be sad if he was beaten this time and I wasn`t there.'