King George and Eclipse winner Nathaniel is among nine potential rivals to Frankel in the Juddmonte International at York following Thursday's confirmation stage.
 
However, the John Gosden-trained colt, who finished a half-length second to Frankel when they made their racecourse debuts at Newmarket two years ago, is more likely to contest the Red Mills Irish Champion Stakes on September 8 than go to York next Wednesday.

The unbeaten Frankel will be stepping up to 1m2f for the first time at York and is joined by stablemates Bullet Train and last year's winner Twice Over.

Ballydoyle's three entries are headed bySt Nicholas Abbey while other potential rivals include Farhh, Planteur and Sri Putra.

Derby runner-up Main Sequence and Frankel's full brother Noble Mission are among the 11 left in the Neptune Investment Management Great Voltigeur Stakes on the same card.