Pour Moi has been removed from the betting for the Qatar Prix de l’Arc de Triomphe.
The Andre Fabre-trained colt had been favourite for the Longchamp showpiece on October 2 at around 3-1.
However, doubts about his participation started to circulate on Friday night, and bookmakers have now taken the Investec Derby hero out of the ante-post market.
“The rumours that all was not well with Pour Moi started on Friday night, and as they appeared to gain more credence, we took the decision to remove him from the betting,” said Coral spokesman David Stevens.
“We have gone for a reformed market. We feel that is be the fairest thing to do, given that no-one would want to back Pour Moi anyway.
“We’ve taken him out now. If the situation did change we would obviously put him back in, but it does seem at the moment that all is not well and the rumours are getting more substantiated.
“It would be a huge disappointment for some punters, but with ante-post betting there are punters who have backed other horses.
“There are winners and losers in ante-post racing.
“He was 3-1 favourite with us. He has been pretty much at the head of the betting since he won the Derby, either jointly or on his own.”
In the reformed market, Sarafina has been promoted to the clear 4-1 favourite for the Arc with King George winner Nathaniel the 9-2 second-favourite.
Qatar Prix de l’Arc de Triomphe, Coral bet: 4-1 Sarafina, 9-2 Nathaniel, 5-1 So You Think, Workforce, 7-1 Meandre, 10-1 Sea Moon, 12-1 Galikova, 16-1 Baraan, Reliable Man, St Nicholas Abbey.