Darren Beadman likely rider for Theseo after stewards ruled that Nash Rawiller will ride the Chris Waller-trained Rangirangdoo.

Theseo was to have his next run in Queen Elizabeth Stakes but is now an acceptor for the Doncaster.

The Waterhouse stable argued that Rawiller was booked to ride Theseo throughout the autumn.

Gai Waterhouse is believed to be giving consideration to lodging an appeal against the decision.