William's Wishes steps up to the highest level to take on the mighty Sprinter Sacre in the Victor Chandler Chase at Cheltenham.
Evan Williams' charge is unbeaten over fences and the handicapper put him up to 153 following his latest win at Sandown.
"Sprinter Sacre is a different class, and I can't think our horse is good enough in a Grade One with him in it. It's very much a David and Goliath situation, but we are under no illusions that we will be able to continue our unbeaten record over fences," said Williams.
"That said, he's the sort of horse who would love to get into a ding-dong battle with horses that are too good for him - he loves a scrap.
"Conditions are going to be atrocious, but maybe he might be able to handle it better than others. He's absolutely made of granite."
Kumbeshwar was the beneficiary of Sanctuaire getting tired in the home straight when he finished second in the Tingle Creek, and Alan King's charge is chasing prize money once more.
"On the ratings we have a mountain to climb, but there is serious place money on offer and Kumbeshwar, who is as tough as teak, has already earned more than £50k this season and is ready to do battle again," the trainer told www.alankingracing.co.uk.
Colin Tizzard is in a similar position with Oiseau De Nuit. The handler said: "He's rated 157 still, so handicaps are virtually out for him. We're going there in the hope we can pick up some prize money."
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