Riverside Theatre could make his return from injury in the Betfair Ascot Chase at the Berkshire track on Saturday.
The eight-year-old, part-owned by actor Jimmy Nesbitt, has not raced since winning this race 12 months ago.
Nicky Henderson's charge suffered a stress fracture to his pelvis while being trained for the Ryanair Chase at Cheltenham.
However, he is set to make his comeback in the Grade One contest over two miles five and a half furlongs.
An 11-strong entry includes the Paul Nicholls-trained Kauto Stone, who was last seen finishing second in the Tingle Creek Chase at Sandown.
Alan King has put in Medermit while Evan Williams is double-handed with Cappa Bleu and Deep Purple and Nick Williams has entered Gauvain.
Completing the list are Hell's Bay, I'msingingtheblues, Little Josh, Tatenen and The Sawyer.
