Paul Nicholls admitted his "sadness" after Kauto Star's time at his Ditcheat yard came to an abrupt end on Tuesday.
The superstar's owner Clive Smith had announced on Monday that the 12-year-old would be moving away to be prepared by European bronze medalist eventing rider Laura Collett and long-time Great Britain manager and coach Yogi Breisner for a new career in the world of dressage - a decision not popular with Nicholls and his staff.
The winner of 19 races for the champion trainer, including four Betfair Chases and two Tingle Creeks, Kauto Star had been with Nicholls for eight years and was invariably ridden by his head lad Clifford Baker.
Nicholls told his Betfair column: "It is with great sadness that I have to report that Kauto Star has left the yard for the last time. It has been no secret that Kauto's future has been a great source of debate since we announced his retirement. And, to be brutally honest, this morning I felt the time had finally come for me to take control of the situation, and to start making the decisions.
"Now, I am fully aware that Kauto is Clive's horse and he can do as he wishes, even though I would personally have loved Clifford to have looked after him for the rest of his years. But what upset me and my team here is when Clive announced that he had spoken to experts about the horse's future - but failed to consult and listen properly to the team that had looked after him here for the past nine years. That really upset us."
Nicholls went on: "So we had a team meeting here this morning. And after listening to everybody involved - there were about six of us in the meeting - I rang up Clive, said I don't want to fall out, but we think it is in the best interests of everybody concerned to take Kauto to Yogi Breisner's this afternoon so that he could start his new career in the dressage field as soon as possible.
"Which we did with the saddest of hearts. But I like to think with a lot of dignity, too. And, yes, there were plenty of tears too. He was a member of the family here at Ditcheat, and we will all miss him so much. I would just to like say that it was a privilege for us here at Ditcheat to train the horse. Good luck, old boy. You were the best - and deserve the best."
Collett, 22, who is an aspiring Olympian based at the Membury Estate in Wiltshire, tweeted: "I feel very privileged and extremely honoured to have been asked to ride Kauto Star. I will be working closely with Yogi to give Kauto Star the best chance of a second career in dressage."
She added: "Kauto Star has arrived safe and sound. Had a nice roll, now happily munching on his hay!"
Collett also revealed she had spoken to Paul Nicholls to reassure him about Kauto Star and tweeted: ""Just had a lovely chat with @PFNicholls about Kauto Star...I have reassured him Kauto will be treated like the legend he is...".
23 November 2014Belle set for hurdling campaign
Deputy in Kempton firing line
McBratney banks on Boy progress
Silvi scraps to Betfair glory
Bally sparkles on Mullins' big day
Kelly's a Fixed Brush hero
Faugheen turns on the style
Fenton banned for three years
Amlin double for fab Ferof
New One excels in Haydock romp
Flyer grounds Ascot rivals
Vasco a cut above opposition
22 November 2014Conti strikes Betfair Chase gold
Taken seeking Listed gold
Mogol facing Monksfield test
Vautour makes chasing bow
Gordon enjoys Dundalk spin
McCoy: Landmark swayed judgment
Jacob warms up with brace
Hill peaking for Troytown return
Billy back on winning track
Walsh back for Ferof ride
New ready for Haydock Rush
Cheltenham is Big aim
Mullins eager for Faugheen run
Cue primed for Betfair defence
21 November 2014Geraghty snapped up for Seuil
Volnay aiming for quick repeat
Argocat camp play it cool
Leading Light retired
Frankel filly breaks Irish record
Linton loses Listed place
Doubles for Pipe and Scudamore
Nasty spill for Insole
McCoy targets midweek return
Farm comes Home to roost at Thurles
Flemenstar future dictated by scan
Cue lined up for Haydock return
20 November 2014McNamara joy at turning pro
Volnay seeking Mersey paradise
Sloane Avenue books Dubai date
Spencer reveals Qatar riding snub
Doyle ready for Godolphin challenge
Good news at Huntingdon
BHA hear Linton case
Avenue shows winning way
Grugy diagnosed with hip issue
Meade plots Monksland comeback
Ptit secures swift double
Shanes shines in hurdles win
Mullins' stars set for weekend runs
Haydock aim for Aurore
Medermit in Betfair contention