'Dramatic failure' prompts Aidan O'Brien rethink with Air Force Blue

Aidan O'Brien is planning a total rethink with Air Force Blue as he tries to get back on the winning track in the Tattersalls Irish 2,000 Guineas at the Curragh on Saturday week.

The War Front colt racked up three successive Group One wins last term to be crowned champion juvenile and was sent off an odds-on favourite to pick up where he left off in the 2000 Guineas at Newmarket.