Constitution Hill heads 12 Champion Hurdle confirmations

The biggest threat to the favourite appears to be Irish Champion Hurdle hero State Man

Constitution Hill will be a red-hot favourite to extend his unbeaten record under rules to six in the Festival's day one feature. Picture: Egerton/PA

Constitution Hill heads 12 confirmations for the Unibet Champion Hurdle at Cheltenham on Tuesday.

Nicky Henderson's charge is widely regarded as the pre-eminent star of National Hunt racing and will be a red-hot favourite to extend his unbeaten record under rules to six in the Festival's day one feature.