Paul Nicholls has revealed that talented novice chaser Knappers Hill will miss his big festive target and is probably out for the season having suffered a setback.

The seven-year-old, who was unbeaten as a bumper horse before going on to score seven times as a hurdler, appeared set to take high-rank over fences this season following a thoroughly impressive victory at Wincanton in the “Rising Stars” Novices’ Chase.

He was due to contest the Grade One Ladbrokes Kauto Star Novices’ Chase on Boxing Day, but there is set to be a shuffling of the Ditcheat pack with fellow top novice operator Hermes Allen poised to skip an intended outing in Ascot’s Noel Novices’ Chase on Friday to fill Knappers Hill’s Kempton vacancy.

“I was going to run Knappers Hill in the Kauto Star, but sadly he’s had a little setback and we might end up missing the rest of the season with him,” Nicholls told Racing TV’s Luck On Sunday programme.

“It’s only minor, but I see him possibly as a horse who could run in the King George next season, so I think we need to stop and get him right.

“I’m going to reroute Hermes Allen to the Kauto Star now rather than go to Ascot this week, because I’d love to run him in a Grade One, especially over three miles.

“You play your cards and try to keep them all apart and then something like this happens, so Hermes will almost certainly go to Kempton on Boxing Day.”

Hermes Allen made a fine start to his career over fences with a smooth success in the Coral John Francome Novices’ Chase at Newbury.

The six-year-old looked a top-class prospect after striking Grade One gold in the Challow Hurdle at the Berkshire track late last year but was unable to replicate that form in the spring after being sent off favourite for both the Ballymore at Cheltenham and the Mersey Novices’ Hurdle at Aintree.

Having undergone wind surgery during the off-season, the Paul Nicholls-trained gelding was the 13-8 market leader for his reappearance and chasing bow and ultimately got the job done in convincing fashion.

The keen-going Nickle Back took the six-strong field along for much of the two-and-a-half-mile journey and looked to have the chasing pack in trouble rounding the home turn, with Harry Cobden having to ask Hermes Allen a question or two to close the gap.

However, Nickle Back’s earlier exertions began to take their toll halfway up the straight and Hermes Allen soon took his measure before stretching six and a half lengths clear.

“It was a proper race today, which you’d expect, and I’m thrilled with that. He jumped well, travelled well, learnt a lot and galloped on well,” Nicholls told Racing TV.

“Harry was thrilled with him, he said he was very clever jumping, especially late on, and that’s just what you want from a novice chaser first time.

“I’ve said quite openly, we missed a month’s work with him and I’ve been chasing my tail to get him ready, to be honest. It’s only a fortnight ago that I thought we’d get here, luckily we were able to gallop him here on the gallops morning, he’s schooled well and we’ve just about got away with it.

“He will improve fitness-wise, but he’s just got natural ability. His form in the first half of last season was very good, then he lost his way a bit, but he was struggling with his breathing all season and I think that caught up with him in the spring. He’s the finished article now.”

The Ditcheat handler now faces a quandary over how best to campaign what appears a particularly strong team of novice chasers in the staying division.

He said: “The idea is that Stay Away Fay runs at Sandown next week (Esher Novices’ Chase) and Knappers Hill is going to go to Kempton (Kauto Star Novices’ Chase on Boxing Day). I was thinking this horse would go for the Dipper on New Year’s Day at Cheltenham, but that’s gone now, so we’ll have to come up with something else.

“I don’t want to run them against each other at the moment. We’ll have to in the spring, but at the moment it’s pointless really.

“Whether I go to Cheltenham in a fortnight’s time with this horse over two-and-a-half and then leave him for the Scilly Isles (at Sandown in February), that could be a possibility.”