And Power, who won the 2017 Gold Cup on Sizing John, said on a Tattersalls Cheltenham preview night he heard the seven-year-old could be heading to Cheltenham.
McManus has already seen his star chaser Fact To File beaten twice by odds-on Gold Cup fav Galopin Des Champs twice this season.
THE Gold Cup could be set for a monumental shake-up after it was claimed the Grand National favourite may be supplemented for the big Cheltenham race at a cost of £25,000.
'Puppy' Power said on the preview night: "I just heard a rumour that Gavin Cromwell's horse is going to be supplemented for the Gold Cup.
Mind you, he'll recoup his cash if Inothewayurthinkin were to finish fourth again to Galopin Des Champs - the same spot he filled when he last ran in the Irish Gold Cup.