Tony McCoy could cost the bookies €70m this weekend
Irishman aiming for fairytale ending at Aintree
Bookmakers are estimating a €70million pay-out should Shutthefrontdoor land the Crabbie's Grand National and give Tony McCoy a dream swansong from the saddle at Aintree.
But McCoy reckons his wife would only back Shutthefrontdoor if he did not tell her to.
He told William Hill Radio: "Chanelle thinks I'm the worst tipster in the world. If she was thinking of having a bet on the Grand National, she'd back me as long as I didn't tell her to - if I told her to bet on me, she'd probably back something else!"
Oh his chances of winning, which would lead him to retire on the spot, McCoy said: "That would be a bit of a fairytale and I'm not even sure I'm silly enough to dream that could happen. There would be a bit of sadness too, knowing that it would be the last time I'd ever be on a horse."
Betfair's Barry Orr said: "With over 4,000 winners AP has built a house that will never fall and Saturday's race will be the last piece of an amazing puzzle when he shuts the front door on an outstanding career.
"But an AP victory will not be welcome by bookies and even though he has been socking it to us for over 20 years, a win on Saturday would be the biggest single loss incurred by the betting industry on one of his winners."
Hills spokesman Jon Ivan-Duke said: "It's the calm before the storm, we've obviously seen interest in McCoy's horse but there is an ominous feeling. The betting clouds are building but it's the biggest race of the year, we won't be running for cover and we'll try and ride out the inevitable onslaught."
Paddy Power pointed to a small chance that something could actually challenge Shutthefrontdoor for favouritism.
He said: "While it's still highly likely that the AP factor will send Shutthefrontdoor off a clear favourite, it's still not impossible that a plunge on another horse such as Rocky Creek could usurp him come the off on Saturday."