Seven visiting jockeys will make a hit-and-run mission to Sha Tin on Sunday week to ride on BMW Hong Kong Derby day, but recent departure Maxime Guyon will not be among them after being denied permission by his new employers, the Wertheimer brothers.

Tye Angland (Romantic Touch), Hugh Bowman (Helene Happy Star), Bernard Fayd'herbe (Golden Sleep), Ryan Moore (Got Fly) and Christophe Soumillon (Obliterator) have all picked up rides in the HK$18 million classic.

Tommy Berry (Dan Excel) and Wayne Lordan (Gordon Lord Byron) will join Moore (Divine Calling) and Soumillon (Gold-Fun) to ride in the day's other Group One, the Queen's Silver Jubilee Cup.

But Guyon, who partnered David Ferraris-trained Dynamism to an impressive victory on February 15 and confirmed his intention to return for the Derby, will not return, with Ferraris forced to turn to Olivier Doleuze instead.

"We wanted him back," the South African handler said. "We put in a request and he was very keen, but his bosses wouldn't release him for the ride. But we have a more than able replacement in Olivier."

Matthew Chadwick was touted as the jockey for Tony Cruz's Derby hope Anticipation, but received a three-day careless riding ban at Happy Valley on Wednesday night which means he will be on the sidelines for the four-year-old feature.

Cruz said yesterday that a replacement rider had yet to be locked in.

There was some confusion about who Moore would partner in the Queen's Silver Jubilee Cup after a tug of war between the connections of Tony Millard's Divine Calling and Richard Gibson's Dundonnell.

The globetrotting jockey is being flown in to ride Dundonnell's stablemate Got Fly in the Derby, but he became the subject of a minor dispute for the 1,400m feature.

Jockey Club stewards were preparing to hold a specially convened hearing to settle the disagreement.

But the matter was resolved amicably and Moore will partner Millard's grey.