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Exciting debut winners Slate House and Dame De Compagnie are both vying to unleash their potential in the Grade Two Sky Bet Supreme Novices' Hurdle (3:30).
Colin Tizzard's Slate House cost his owners a huge £260,000 following his easy ten length point-to-point success last year.
The five-year-old made an encouraging start on his rules debut, winning a maiden hurdle at Prestbury Park comfortably.
"He's a horse who cost a money, and he's one we all think a lot of," said Joe Tizzard, assistant and son to Colin.
"He did it really nicely on his first run at Cheltenham a few weeks ago, and like all of our horses he should improve for the run.
"We will see how good he is on Sunday, it's a good race and a good test."
Nicky Henderson's mare Dame De Compagnie similarly made a very impressive start on her British debut.
The French purchase won very well on her debut in Uttoxeter, where jockey Barry Geraghty didn't have to get out of second gear to seal the victory.
"I adore this filly and she was very impressive when scoring on her debut for us at Uttoxeter," Henderson told his Unibet blog.
"I’m not saying this is the natural progression, in fact it’s quite an ambitious progression, but she is a horse we think an awful lot of and will have improved for her first run.
"She’s ready to go again and this race will tell us an awful lot as to how good she really is but she’s been doing everything right and I wouldn’t swap her for the world.
"She’s just a lovely lady and I’m very keen on her."
Nicky Richards' Better Getalong, Dan Skelton's Bedrock and Tom George's Summerville Boy also seek Grade Two glory.