O'Brien pair may miss Ascot date

AIDAN O'BRIEN could be without a representative in Saturday's King George VI and Queen Elizabeth Diamond Stakes at Ascot.

O’Brien , who won last year’s renewal with Galileo, has both Bach and Della Francesca entered for the mile and a half contest but neither is certain to run.

Should he run at the Berkshire track Bach, who was second behind Rebelline in the Tattersalls Gold Cup at the Curragh earlier this year, would be tackling the mile and a half trip for the first time after showing much of his best form over shorter distances.