Altior, four-times winner at the Cheltenham Festival, retired aged 11

Altior won 19 consecutive races from 2015 to 2019Owners retire him while he is still fit and healthyAltior, one of the most prolific and popular jumps horses of recent decades, will not race again after his owners decided to retire him “while still at his peak, fit, sound and healthy and ready for a new career”, Nicky Henderson, the 11-year-old’s trainer, said on Monday.Altior ran up an unbeaten sequence of 19 races over both hurdles and fences between October 2015 and April 20