The Gordon Elliott-trained Zanahiyr faces disqualification from third place in last season’s Champion Hurdle after testing positive for a prohibited substance.
An independent disciplinary panel of the British Horseracing Authority will consider on Wednesday whether his trainer is in breach of the post-January 4 2022 Rules of Racing due to the presence of a prohibited substance urine sample taken from Zanahiyr after the race on March 15.
Ridden by Jack Kennedy, the pair were beaten four and a lengths by Honeysuckle, with Epatante in second.
In fourth place and set to benefit from any disqualification was the Willie Mullins-trained Saint Roi, like Epatante owned by JP McManus.
Zanahiyr finished last of five in Sunday's Irish Champion Hurdle at the Dublin Racing Festival as State Man won the Grade 1 at Leopardstown.
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