• Horses are taken on an early morning ride on the gallops before the Cheltenham Festival horse racing meet in Gloucestershire, western England March 15, 2010. The four-day race meet begins Tuesday and culminates on Friday with the Cheltenham Gold Cup. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT HORSE RACING) - GM1E63F1RLK01

• Horses jump a fence in The Grand Annual Steeple Chase Challenge Cup during the Cheltenham Festival horse racing meet in Gloucestershire, western England March 18, 2011. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT HORSE RACING) - GM1E73J063H01

• Frankie Dettori celebrates by jumping off "Rewilding" after winning The Prince of Wales's Stakes on the second day of the Royal Ascot race meeting in southern England June 15, 2011. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT HORSE RACING ANIMALS) - GM1E76F1TQ501

• Horses and riders wait for the start of The Handicap Hurdle Race at the Cheltenham Festival horse racing meet in Gloucestershire, western England March 14, 2014. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT HORSE RACING) - GM1EA3E1R4I01

• A stable boy takes The Hollinwell for a walk at the course on a foggy morning before the final day at the Cheltenham Festival horse racing meet in Gloucestershire, western England March 14, 2014. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT HORSE RACING ENVIRONMENT ANIMALS) - GM1EA3E1EVG01

• Work rider John Codd takes a break with Champion Hurdle favourite Faugheen after riding out on the gallops at the Cheltenham racecourse in western England March 9, 2015. The four-day Cheltenham Festival 2015 culminating with the Gold Cup, will begin on Tuesday. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT HORSE RACING ANIMALS TPX IMAGES OF THE DAY) - GM1EB391H5X01

• Horse Racing - Cheltenham Festival - Cheltenham Racecourse - 10/3/15Tom Scudamore on Gevrey Chambertin clears the water jump during the 14.40 Ultima Business Solutions Handicap ChaseReuters / Eddie KeoghLivepicEDITORIAL USE ONLY. - 13489965

• Racegoers stand in the Parade Ring during the third day of Royal Ascot race meeting June 18, 2009. REUTERS/ Eddie Keogh (BRITAIN SPORT HORSE RACING IMAGES OF THE DAY) - GM1E56J055Q01

• Richard Hills on Ghanaati celebrates as he crosses the finishing line to win The Coronation Stakes during the fourth day of Royal Ascot race meeting June 19, 2009. REUTERS/ Eddie Keogh (BRITAIN SPORT HORSE RACING) - GM1E56J1UEL01

• Horses and jockeys round the final bend in the Queen's Vase during the fourth day of Royal Ascot horse race meeting June 19, 2009. REUTERS/ Eddie Keogh (BRITAIN SPORT HORSE RACING) - GM1E56K04II01

• Camelot (C) ridden by Joseph O'Brien races for the finish line to win The Derby at the Epsom Derby festival in Epsom, southwest of London June 2, 2012. Queen Elizabeth gets four days of celebrations to mark her 60 years on the British throne under way on Saturday with one of her favourite pastimes, a trip to the horse races, as tributes to the long-serving monarch pour in. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT HORSE RACING) - GM1E8621U6G01

• Jockey and former British Olympic cycling champion Victoria Pendleton poses for a photograph with Minella Theatre at Lawney Hill Racing in Aston Rowant, southern England March 17, 2016. She is due to ride Pacha Du Polder in the Foxhunter Chase at Cheltenham Festival tomorrow. REUTERS/Eddie Keogh - D1AESTAQSAAA

• Horse Racing - Royal Ascot - Ascot Racecourse - 16/6/15General view during the 15.40 King's Stand Stakes Reuters / Eddie KeoghLivepic - 13814441

• Horse Racing - Royal Ascot - Ascot Racecourse - 17/6/15Frankie Dettori celebrates after riding Osaila to victory in the 17.35 Sandringham Handicap StakesReuters / Eddie KeoghLivepic - 13816537

• Frankie Dettori (2nd R) rides to win the Tercentenary Stakes on Time Test on Ladies Day at Royal Ascot, just south of London, Britain, June 18, 2015. REUTERS/Eddie Keogh - LR2EB6I13U4LM

• A race goer enjoys a cigar on Ladies Day at Royal Ascot, just south of London, Britain, June 18, 2015. REUTERS/Eddie Keogh - LR2EB6I1626OW

• Horse Racing - Royal Ascot - Ascot Racecourse - 19/6/15Illuminate ridden by Richard Hughes wins the 14.30 Albany StakesReuters / Eddie KeoghLivepic - 13820387

• Waterloo Bridge ridden by Ryan Moore wins the Norfolk Stakes on Ladies Day at Royal Ascot, just south of London, Britain, June 18, 2015. REUTERS/Eddie Keogh - LR2EB6I11YLJ9

• Horse Racing - Cheltenham Festival - Cheltenham Racecourse, Cheltenham, Britain - March 12, 2019 Klassical Dream ridden by Ruby Walsh during the 1:30 Sky Bet Supreme Novices' race REUTERS/Eddie Keogh - RC1DDADCAE00

• Horse Racing - Cheltenham Festival - Cheltenham Racecourse, Cheltenham, Britain - March 12, 2019 Rachael Blackmore on A Plus Tard celebrates winning the 4:50 Close Brothers Novices' Handicap Chase REUTERS/Eddie Keogh - RC125BE9A600

• Horse Racing - Cheltenham Festival - Cheltenham Racecourse, Cheltenham, Britain - March 13, 2019 General view of racegoer's at the betting stands REUTERS/Eddie Keogh - RC1D97922B90

• Horse Racing - Cheltenham Festival - Cheltenham Racecourse, Cheltenham, Britain - March 14, 2019 Frodon ridden by Bryony Frost and Aso ridden by Charlie Deutsch in action during the 2.50 Ryanair Chase REUTERS/Eddie Keogh - RC1D4868CC30

• Horse Racing - Cheltenham Festival - Cheltenham Racecourse, Cheltenham, Britain - March 14, 2019 Lizzie Kelly celebrates on Siruh Du Lac after winning the 4.10 Brown Advisory & Merriebelle Stable Plate Handicap Chase REUTERS/Eddie Keogh - RC1B91049120

• Horse Racing - Cheltenham Festival - Cheltenham Racecourse, Cheltenham, Britain - March 14, 2019 King's Odyssey ridden by Adam Wedge falls during the 4.10 Brown Advisory & Merriebelle Stable Plate Handicap Chase REUTERS/Eddie Keogh TPX IMAGES OF THE DAY - RC1E1C8CEE80

• Horse Racing - Cheltenham Festival - Cheltenham Racecourse, Cheltenham, Britain - March 14, 2019 General view before the 3.30 Sun Racing Stayers' Hurdle REUTERS/Eddie Keogh - RC12A9DD5530

• Horses take an early morning ride on the gallops before the Cheltenham Festival horse racing meet in Gloucestershire, western England March 9, 2009. The four-day race meet begins Tuesday and culminates on Friday with the Cheltenham Gold Cup. REUTERS/ Eddie Keogh (BRITAIN). SPORT HORSE RACING) - GM1E5391I4J01

• Jockey Ruby Walsh stands with Kauto Star as he celebrates after winning the Cheltenham Gold Cup Steeple Chase on the final day of the Cheltenham Festival horse racing meeting in Gloucestershire, western England March 13, 2009. Kauto Star is one of five-times champion trainer Paul Nicholls' leading stable lights. Nicholls has sent out more than 1,800 winners since a broken leg ended his stuttering career as a journeyman jockey and enabled him to fulfil a lifelong dream by gaining a training licen

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• Britain Horse Racing - Royal Ascot - Ascot Racecourse - June 21, 2017 Racegoers at the races REUTERS/Eddie Keogh Livepic - 14806733

• Action from the 4.40 Doom Bar Sefton Novices' Hurdle;2018 Randox Health Grand National Festival, ​Ladies Day, Horse Racing, Aintree Racecourse, Liverpool, UK - 13 Apr 2018 Eddie Keogh for The Jockey Club

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• Racehorses are seen early mormimg on the gallops at Upper Lambourn, southern England, January 28, 2016. REUTERS/Eddie Keogh

• Horse rider Izzy Carroll tends a horse after a frosty morning ride on the all weather gallops at the stables of Lawney Hill Racing in Aston Rowant, southern England, Britain January 20, 2016. REUTERS/Eddie Keogh - RTX237RC

• A racehorse is washed after an early morning workout on the gallops in Aston Rowant, southern England October 21, 2010. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT HORSE RACING ENVIRONMENT)

• Riders from Woodway stables take their horses out on the all-weather gallops in Aston Rowant, after snowfall in the Chiltern Hills, southern England February 3, 2015. REUTERS/Eddie Keogh (BRITAIN - Tags: ANIMALS ENVIRONMENT SPORT HORSE RACING) - RTR4O1AR

• Horses clear a fence during The Novices' Handicap Steeple Chase on the first race of the day during the Cheltenham Festival horse racing meet in Gloucestershire, western England March 10, 2015. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT HORSE RACING)

• Horse Racing - Royal Ascot - Ascot Racecourse - 17/6/15Shane Kelly rides American Hope in The Royal Hunt Cup.Reuters / Eddie KeoghLivepic

• Tom Quealy on Frankel (R) races ahead of Olivier Peslier on Cirrus des Aigles to win The Champion Stakes during the British Champions Day at Ascot racecourse in southern England October 20, 2012. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT HORSE RACING) - RTR39DF4

• A racegoer, with all his previous race badges, poses for a photograph with his binoculars during the Cheltenham Festival horse racing meet in Gloucestershire, western England March 12, 2013. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT HORSE RACING TPX IMAGES OF THE DAY) - RTR3EVUB

• Racehorses head towards the second fence of the Supreme Novices Hurdle Race on the first race of the day during the Cheltenham Festival horse racing meet in Gloucestershire, western England March 11, 2014. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT HORSE RACING) - RTR3GLTC

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• Jockeys wait to enter the Parade Ring during the third day of Royal Ascot race meeting June 18, 2009. REUTERS/ Eddie Keogh (BRITAIN)

• Racegoers watch the racing during the fourth day of Royal Ascot race meeting June 19, 2009. REUTERS/ Eddie Keogh (BRITAIN)