Ascot Gold Cup winner Leading Light may have run his last race after picking up a nasty injury at Ascot on Saturday.
The Aidan O'Brien-trained four-year-old, who also won the St Leger last season, was badly hampered by the eventual winner of the British Champions Long Distance Cup, Forgotten Rules, and the result of the incident is injuries to both his front legs.
O'Brien feels the setback may be enough to force the son of Montjeu into retirement.
The Ballydoyle handler said: "It was an unfortunate incident and the unfortunate part was the horse came out of it the wrong side.
"He has two very bad injuries to both his front legs and there's a chance he might never race again.
"It's very disappointing."
