Declared for Leapordstown's Qipco Irish Champion Stakes on Saturday, Addeybb's appearance looks to be hanging in the balance, with much-needed rain not forecast, he may well miss the feature on day 1 of the Irish Champions Weekend.
Stablemate Young Rascal is headed for the Prix Niel at ParisLongchamp 23 hours later, but likewise conditions on the course may see him withdraw.
Having won his first two starts this year under James Doyle, which included the Group 2 bet365 mile at, Addeybb then went on to finish eigth in Newbury's Group 1 Lockinge Stakes at Newbury back in May.
Speaking earlier today, William Haggas told Press Association Sport that "I'm very concerned that there hasn't been enough rain. He has been in great form and he needs to run.
"The last thing I want to do is jar him up on fast ground and not have him for the autumn. I think stepping him up in trip will suit him.
"He is not going to win a Group One over a mile unless it is very soft or heavy ground."
Young Rascal was a leading contender for Investec Derby honours after winning the Chester Vase. He was seventh of 12 to Masar in the premier Classc and has not run since.
Haggas also went on to state that "he needs rain and it has not rained at all, but he has been declared. I need to speak to Mr (Bernard Cantor, owner). If it looks like being dry we will swerve it, but he is another that needs a run.
"If he doesn't go to France he will go to Newbury for what was the Arc trial.
He added: "He took the Derby very hard and it has been a battle coming back and hard work getting him right, as it bottomed him out.
"For some reason he just wasn't the same after Epsom. I wanted to run him in the Voltigeur, but it was too quick. I want to run him in the Niel, but I don't want to go back to where we were after the Derby.