AIDAN O’BRIEN has described Starspangledbanner as the fastest horse he has ever seen on the Ballydoyle gallops and the trainer will hope the Australian star can confirm that view in Friday’s Darley July Cup at Newmarket.

Starspangledbanner was a hugely impressive winner of Royal Ascot’s Golden Jubilee Stakes and will try to pull off a Group One sprint double that eluded his sire, Choiser, seven years ago.

Choisir won the Golden Jubilee at Royal Ascot in 2003 but came up a length and a half short of Oasis Dream when attempting to land the July Cup.

His son however is a short -priced favourite to win the centrepiece of this week’s July festival in which another Ascot winner, Lillie Langtry, will fly the Ballydoyle flag in Wednesday’s Group One Falmouth Stakes.

It is 31 years since an Irish -trained horse has won the race and when Michael Cunningham’s Rose Above was successful in 1979, it was a Group Three event known as the Child Stakes.

Since promoted to top-flight status in 2004 the Falmouth has been won by the likes of Soviet Song and Goldikova and although only nine entries remain ahead of today’s final declaration stage, it looks a vintage renewal.

Lillie Langtry could again clash with Jim Bolger’s Coronation Stakes runner-up Gile Na Greine while the French superstar, Special Duty, the promoted winner of both the English and French Guineas, is an intended starter.

Both O’Brien and Bolger may also be represented in Wednesday’s Cherry Hinton Stakes with the Curragh maiden winner Wild Wind and the Group Three victor Radharcnafarraige respectively.

Roscommon hosts black-type action tonight with the eight -runner Lenebane Stakes looking to give John Oxx’s Karasiyra a good opportunity to score a valuable success. Oxx has won the mile and a half event for the last two years with Alaivan and Raydiya who, like Karasiyra this evening, was ridden by lightweight jockey Niall McCullagh.

Oxx’s number one Fran Berry is on the older mare Indiana Gal due to the weights for this race and McCullagh should again profit as the Aga Khan-owned Karasiyra was only just denied by Grace O’Malley in the Group Three Noblesse at Cork when upped to 12 furlongs for the first time.

South African-born Keagan Latham teams up with Dermot Weld in this race for Sense Of Purpose while Ballydoyle has both Grand Admiral and High Chaparral’s full-sister Dance On By. But Karasiyra’s biggest threat may come from Leo Gali.

Oxx also looks the trainer to follow in the concluding maiden with Dawn To Dance. The Selkirk filly was a disappointing favourite at Down Royal in May but showed more on her last Curragh start.

High Ruler finished last on his Curragh debut but that six furlongs must have been well short of optimum for a son of the Oaks winner Lady Carla and the O’Brien runner may be worth another shot in the opening juvenile maiden.