AP McCoy is joining BBC Radio 5 live as a racing pundit every Friday night.
The 18-time champion jockey will join host Dan Walker to discuss the big stories on and off the track and to preview the week's racing ahead.
BBC head of radio sport Richard Burgess said: "This addition means our audiences will get a regular insight from one of the sport's greats."
McCoy, 39, will also front one-off racing programmes including a special show after he rides his 4,000th winner.
Before racing on Wednesday, 2010 BBC Sports Personality of the Year McCoy was 26 victories short of the 4,000 landmark.
The Arsenal fan said: "I'm looking forward to chatting to Dan every week about the Premier League, assessing Arsenal's performance... it's a big season for them. Oh, and chatting about racing too, obviously."
Radio 5 live has an extensive racing rights portfolio, bringing comprehensive coverage of all the major meetings in the UK and overseas.