Trainer Sandy Thomson hailed Yorkhill a “superstar” after confirming the dual Cheltenham Festival hero had been retired due to injury.

The 11-year-old claimed back-to-back victories at the showpiece meeting when trained in Ireland by Willie Mullins – landing the Neptune Investment Management Novices’ Hurdle in 2016 and JLT Novices’ Chase 12 months later, but subsequently lost his form.