"Whatever happens he'll always be a triple champion and we haven't given up hope of him winning another Gold Cup," he said. "His groom Jackie Jenner wasn't happy with him in the middle of his work at about 9.30, so she pulled him to a halt and now the dream has come to a temporary end.
"It's disappointing, but what can one do? In many ways Hen, Terry and his rider Jim Culloty are just relieved he will be well again in the long term and, although he won't race again this season, it could be that we will bring him back earlier than normal next season."
Lewis still plans to attend next week's Festival and had words of advice for whoever takes his place in the winner's enclosure. He said: "I'll be envying whoever wins the Gold Cup, but I'd also advise them to savour every moment because they are very rare and very special."
In another strange twist to an increasingly volatile Gold Cup picture, Irish trainer Tom Taaffe confirmed today his impressive King George winner Kicking King is back on course for Cheltenham despite having been ruled out of the race over a week ago.
Owner Conor Clarkson had said that "there's no way we are going to make it" when the gelding went down with an infection nine days ago. However, connections have had a dramatic change of heart, leaving Ladbrokes and Totesport to make the exciting seven-year-old as short as 6-1 in their revised market.
Taaffe said: "Kicking King has surprised us in all aspects with his wellbeing since 6 March and seems to have put his problems behind him."
Latest Totesport Gold Cup betting (sponsors' odds): 7-2 Kingscliff, 9-2 Strong Flow, 5-1 Beef Or Salmon, 6 Kicking King, Celestial Gold, 7 Rule Supreme, 8-1 Grey Abbey, 16 bar
The highs and lows for Festival champion
March 2000: unlucky defeat in Supreme Novices Hurdle at Cheltenham March 2002: wins first Cheltenham Gold Cup March 2003: wins second Cheltenham Gold Cup March 2004: wins third Cheltenham Gold Cup Nov 2004: unconvincing win on his seasonal debut Dec 2004: shock defeat at Leopardstown Feb 2005: stable under a cloud