AP McCoy is backing a 100-1 Derby outsider to beat rivals in the £2 million Betfred Derby on Saturday.
What is the horse's chances?
The horse, Rebel Rocker, has only raced twice, winning a maiden on debut last year and finishing second in Epsom's Derby trial in April.
AP McCoy owns a racing yard in Lambourn where rookie trainer Faye Bramley will saddle her first runner in the Epsom Classic.
Who is Faye Bramley?
Faye Bramley used to look after AP McCoy's daughter's showjumpers before taking out her trainer's licence a couple of years ago.
AP McCoy has known Faye Bramley for a good while and thinks she is "really sharp, intelligent and ambitious".
What does AP McCoy think of Rebel Rocker?
AP McCoy rode Rebel Rocker in work last week and said the horse "felt good" and is "very well-balanced".
Rebel Rocker is a 100-1 chance with William Hill, but AP McCoy thinks the horse can "beat a fair few of them home".
The experience Rebel Rocker got from Epsom should help him in the Derby, according to AP McCoy.
AP McCoy was knighted in 2016 after retiring from the saddle in 2015 with 20 champion jump jockey titles.
He has remained involved in the sport through his association with billionaire owner JP McManus and as an ITV racing pundit.
The £2 million Betfred Derby will take place on Saturday, with Rebel Rocker being the first runner in the Epsom Classic to come from AP McCoy's Lambourn yard.