Alan King has ruled last year's winner Raya Star out of The Ladbroke (Handicap Hurdle) at Ascot on Saturday and will instead rely on Balder Succes.
Raya Star would have had to carry nearly top weight and will instead run in the Christmas Hurdle at Kempton on Boxing Day.
Balder Succes, a four-year-old, was a good winner at Haydock last time out and is one of the leading ante-post fancies.
"We were lucky enough to win The Ladbroke last year with Raya Star, but he will wait for the Christmas Hurdle at Kempton this time around, so we will rely on Balder Succes at Ascot," King told www.alankingracing.co.uk.
"He is in good form and will hopefully have a decent chance in what is always a very competitive handicap."
On the same card King will also have a crack at the incredible Big Buck's in the Long Walk Hurdle with Smad Place, who disappointed behind Tidal Bay on his first run of the season.
"Smad Place worked nicely yesterday morning and seems back on track, having been forced to miss Newbury's Hennessy meeting when he was not quite right," he added. "Obviously, Big Buck's will be hard to beat at Ascot, but if Smad Place works well in the week that is where he will go."
King's chaser Walkon is set for a break after his brave effort in defeat in the Paul Stewart IronSpine Charity Challenge Gold Cup at Cheltenham on Saturday.
The grey had previously chased home Al Ferof in the Paddy Power Gold Cup and bumped into another smart rival from the Paul Nicholls yard in the shape of the four-year-old Unioniste.
The trainer added: "Walkon did everything right bar win, and he has just bumped into an improving four-year-old who was receiving 17lb, and, while it is frustrating, he has finished second in two of the toughest handicap chases in the calendar, so I am not complaining. He will have a break now."
21 September 2014X-Factor makes it Peckham first
Brooch adorns Smullen century
Cooper edging closer to return
River 'possible' for Royal Lodge
Together takes Gowran spoils
Nash eyeing Aintree bid for Busy
Ajjaadd team seek autumn aim
Fitz fine following comeback run
Dark team to mull options
Glory in Abbaye frame
Ascot on Silk radar
Chrome beaten in Parx return
Fab Fitz back in business
Ayr raid heaven sent for Doyle
Improving Angel lifts Trophy
Hunter hits the target at Ayr
Pilot flies to Newbury glory
Close gets Silver call
Toocool too good in Mill Reef
Dark lights up in Clyde
Hill stars at Newbury
20 September 2014King Louis strikes Ayr gold
Yeenaan takes control
Wannabe Yours heads Joel list
Providence supplemented for Rockfel
That could tackle fences this year
Bell saddened by Wigmore article
Limato out of Mill Reef
Horse welfare 'priority' - BHA
Four-timer for magical McCoy
Accipiter comes good for Wall
Hawk leads treble swoop for Hughes
Bamford wants a Gold Watch
Ainippe samples joy of six at Ayr
Goldie pair on Gold run
Angel of the north heads to Newbury
Candy issues Limato Reef advisory
Glorious bids to protect Legacy
19 September 2014Perfect return for Maguire
Rebel has a cause at Listowel
Ryan quartet in Ayr raid
Varian swoops for Marshall
Simcock aims high with star duo
Bolster back on Gold trail
Fahey chasing Newmarket Millions
Time called on Dude career
Makin off to a flyer at Ayr
Festival stalwart Celestial retired
Guest banking on Memory at Ayr
Dettori sweet on World rule
Baraweez on track for Ascot
Maguire raring to go
Watchable handed low Gold draw
Palmer mulls Aktabantay options
Bronze seeking Newmarket gold
18 September 2014Breathing operation for Cue Card
Early conclusion to Levy agreement
Johnson Houghton hearing date set
Walker looks to future with Moon
Red-hot Kirby in Sandown treble
Listed honours for Hadaatha
Busy bags another National
Botti lines up Newmarket raid
Vintage performance from Weld filly
Cup dreams in mind for Forever
Weld prepares Newmarket challenge
McGrath and Walton charged by BHA
Encke camp ponder next move