The 6-1 chance then quickened readily when asked, sprinting past pacemaker Imago Mundi and holding off Policy Maker, with last year’s Prix de l’Arc de Triomphe winner Bago making up ground late on to take third.

Nothing had reached Imago Mundi, who was pace-setting for Bago, with a furlong and a half left to run but he looked a sitting duck for Alkaased, who was still travelling well.

Dettori then asked his mount to go on heading towards the final furlong and the Coronation Cup runner-up kicked on for a cosy success.

Yeats, who beat Alkaased at Epsom, had been up with the pace for much of the mile-and-a-half race but was being nudged along a fair way out and dropped out of contention when the taps were turned on in the straight.

The 5-4 favourite Bago was another to be under pressure a long way from home, having been settled almost last for much of the race, and it was far too late when he began to run on down the centre of the track in the closing stages.