Prince Khalid Abdullah's has appointed James Doyle as retained rider for his British-trained runners.

Doyle's star has been in the ascendancy over the last couple of seasons, winning the Dubai Duty Free in the Abdullah silks on the Roger Charlton-trained Cityscape last year.

The 25-year-old has won a further three Group Ones this season for Charlton aboard Al Kazeem.

A statement from Abdullah's Juddmonte Farms read: "Juddmonte Farms is pleased to announce that James Doyle will be retained to ride Prince Khalid bin Abdullah's UK-trained horses.

"This will be effective from 1 September."

Despite having made a promising start to his career, Doyle endured a spell in the wilderness and said he had considered turning his back on racing by 2010.

Two years later he was unveiled as stable jockey to Beckhampton-trainer Charlton, with whom he has struck up an excellent association.

Doyle has won big races aboard the Charlton-trained Al Kazeem in the Tattersalls Gold Cup, the Coral-Eclipse and the Prince of Wales's Stakes at Royal Ascot.

His Ascot success was the first leg of remarkable 892-1 three-timer on the card as Belgian Bill and Rizeena later struck in the Royal Hunt Cup and the Queen Mary Stakes respectively.

Doyle will have an immediate boost as he is to take the mount on next year's ante-post 2000 Guineas favourite Kingman when he puts his unbeaten record on the line in Saturday's Betfred Mobile Solario Stakes at Sandown.

John Gosden's stable jockey William Buick has been jocked up for the Group Three, but the owner's racing manager, Teddy Grimthorpe, said: "He (Doyle) will ride Kingman this Saturday.

"Prince Khalid wished to retain a jockey and he had been very pleased with the way James had been riding his horses. James has certainly had a fantastic year so far."

Abdullah's distinctive silks have recently become synonymous with Frankel, the great racehorse who retired last October unbeaten in 14 starts.

As stable jockey to trainer Henry Cecil, Tom Queally was ever present in the saddle aboard the colt, but has never been retained by Abdullah.

The Prince's last UK-based retained rider was Richard Hughes, who held the position for seven years before he went freelance in 2007.