Le Beau Bai is gradually recovering from the pelvis injury which will prevent him from defending his Coral Welsh National crown.
Richard Lee's old favourite has had a difficult Christmas as he suffered the problem just a few days before the originally scheduled race at Chepstow on December 27.
Le Beau Bai is something of a specialist around the undulating Monmouthshire course, having finished third in the 2009 renewal and won there twice before his seven-length defeat of Giles Cross 12 months ago.
He had started off this season with typical vigour, taking a handicap hurdle at Ffos Las in November.
"He is as well as can be expected," said Lee, who trains in the Welsh borders.
"He has to be as immobile as he possibly can, but he has been an absolutely perfect patient, even if it's so boring for the poor guy.
"He cracked his pelvis - it's obviously different with horses to humans, but he will have to stay like this for six weeks. It's not an uncommon injury and we are hopeful he will be able to make a complete recovery."
Lee has more or less ruled out his remaining Chepstow entry, the outsider Incentivise, as a replacement.
"As much as we would love to have a runner, he won't run if the top-weight Across The Bay does," he said.
"It's pretty certain he will run at Plumpton on Sunday instead (At The Races Sussex National)."
22 May 2015Gleneagles tees off at Curragh
Stars dazzles at Goodwood
Dettori receives golden ticket
Paris in Sandown shake-up
Tudhope suffers Haydock blow
Gatsby in great form for Gold run
O'Brien banking on Found progress
Ivawood targets Guineas revenge
Sole seeking home success
Brooch aiming to sparkle again
Dods hoping Angel can soar
Remote makes Festival return
Force back for Temple test
Cumani hangs fire as Dubai dazzles
Dods hoping for Angel delight
Epicuris team seek dispensation
Treve buzzing for Corrida comeback
No going concerns for Gatsby
Gleneagles spearheads Guineas field
Power to stay in Ireland
Muthmir earmarked for Haydock date
21 May 2015Ground concerns for Pretend
Ball back on duty at Worcester
Ground key to Boy Gold run
Fitz up against it for Galway
Hobbs to race in Godolphin blue
Haggas has plenty to Wonder about
Straight to Ascot for Rizeena
Curragh all set for big weekend
Byron in Greenlands hunt
Sandown or Epsom options for Spring
O'Brien looks to Tapestry
Europe the 'horse of a lifetime'
Legatissimo in Oaks reckoning
20 May 2015Top fillies given Irish Derby entry
Girl could spark Ascot dreams
Coolmore acquire Pharoah rights
Cirrus leads Longchamp septet
Time called on Europe career
Doyle set for Kazeem Gold run
RMG and ARC announce joint venture
Lyons planning dual Guineas raid
Albany aim for Spanish
Maarek team wait on ground
Birdcage takes flight at Dundalk
Gatsby tops Tattersalls entry
Great expectations in Needler
Karakontie likely to bypass Ascot
Devonshire added to Guineas field
Arod in Ascot frame
Elm team have high hopes
Varian retains Belardo faith
Ground to decide Power aim
19 May 2015Fanning targets swift return
Medrano camp turn to Hughes
Cossack named jumps champion
Toormore team get thinking caps on
Bear back on the move
Wind fired up for Temple test
Ballynagour makes French connection
Walker retains faith in Moon
Mimic in hat for Yeardley surge
Manhattan on menu for Protector
Pandora to swerve Oaks
Hannon duo primed for Guineas
Fabre rules out Lion Derby date
Weld respects Horn claims