Last season's Neptune Novices' Hurdle hero Yorkhill is among 66 entries for the JLT Novices' Chase at the Cheltenham Festival on March 16.The Willie Mullins-trained seven-year-old, who conquered Yanworth last spring, is unbeaten in two races over fences.Mullins is responsible for 11 of a record 31 Irish-trained contenders.The Closutton handler's other possibles include Bleu Et Rouge, Briar Hill and American Tom. Nicky Henderson's nine entries are headed by Buveur D'Air, who was third to Altior and Min in the 2016 Supreme Novices' Hurdle.Top Notch and Whisper are also engaged for the Lambourn handler. Paul Nicholls has a six-strong team featuring Clan Des Obeaux, Frodon and Aux Ptits Soins.