Dual Group 1 winner Pyledriver (GB) (Harbour Watch {Ire}), who won over £2 million in prize-money and took his trainers William Muir and Chris Grassick to some of the top races around the world, has been retired. Pyledriver suffered a setback ahead of an intended appearance at Kempton on Saturday leaving Muir with a straightforward decision to retire his horse of a lifetime. Winner of the 2021 Coronation Cup at Epsom and last year's King George at Ascot, the six-year-old had been preparing for a possible tilt at the Prix...