Highland Reel is reported in top trim ahead of the Audemars Piguet QEII Cup at Sha Tin on Sunday.

Aidan O'Brien's colt won the Hong Kong Vase over a mile and a half in December and steps back to 10 furlongs as he takes aim at a third Group One victory.

The son of Galileo will be ridden by Ryan Moore and breaks from stall six.

O'Brien's assistant Pat Keating said: "We're happy enough with stall six, no problem.

"Tactics wise, I'll leave that to Aidan and Ryan Moore.

'I'm very happy with him. He's settled in well and continues to do well."

With the ground currently good, Highland Reel takes on 12 rivals, including the respective last three winners of the race - Blazing Speed, Designs On Rome and Military Attack.

Elsewhere, O'Brien said he would be "very happy" to run Ballydoyle in the Qipco 1000 Guineas at Newmarket on Sunday week.

The Group One-winning daughter of Galileo impressed her trainer in a workout on Saturday morning and is now likely to join stablemate Minding, the ante-post favourite for the Fillies' Classic, in the line-up.

Speaking after her gallop, O'Brien told Channel 4 Racing: "That was lovely, you'd have to be very happy.

"On that piece of work, we'd be very happy to run in the English Guineas."

Ballydoyle has not run this season but looked the part at Longchamp in October when she won the Prix Marcel Boussac by a length and a quarter.

Air Force Blue is favourite for the 2000 Guineas at Newmarket next Saturday but O'Brien expressed a slight reservation about the trip as the War Front colt steps up to a mile for the first time.

The three-year-old enjoyed a spectacular juvenile campaign that saw him claim three Group Ones, including the Dewhurst Stakes at Newmarket.

O'Brien said: "He did his last piece of work yesterday and I think he's there now.

"We are a little bit worried about the mile in the Guineas because he's so quick.

"The ideal plan would be Newmarket, Irish Guineas and Royal Ascot, but, if not, we have the option to shorten up."