George Washington was hot favourite when beaten in Ireland

It was first thought the son of Danehill was fine after the two-length loss to Araafa at the Curragh.

But he was found to be slightly lame when he trotted out on Monday morning.

A rematch against Araafa in next month's St James's Palace Stakes at Ascot is now in jeopardy.

Trainer Aidan O'Brien discovered the brilliant Newmarket Guineas winner has pulled muscles over a hip.

"It will be a few days before we know how long it will be before he can run again. Plans for him are on hold," O'Brien told the Racing Post.