Irish visitor The Cliffsofmoher has been put down after a mishap passing the winning post the first time in the Melbourne Cup.

The Caulfield Cup placegetter, trained by Aidan O'Brien, fractured a shoulder as he was approaching the turn out of the straight for the first time.

Stablemate Yucatan was favourite and ran 11th in the race, which was won by Cross Counter, with Marmelo second and A Prince of Arran third.

Jamie Stier, Racing Victoria's manager of integrity services, confirmed the news on Tuesday afternoon.