Finian's Rainbow© Photo Healy Racing
Barry Geraghty has yet to make a decision about which of Henderson's two other runners, Finian's Rainbow and Riverside Theatre, he will ride in the William Hill King George VI Chase at Kempton on Boxing Day.
Finian's Rainbow won the Queen Mother Champion Chase at last season's Cheltenham Festival, but struggled in heavy ground on his reappearance at Ascot in November.
Riverside Theatre, who finished second to Long Run in the King George two seasons ago, landed the Ryanair Chase at the Festival in March but has not been seen since he was pulled up at Aintree in April.
The Irish jockey told At The Races: "It's a very difficult call - you don't want to be offending anyone, either.
"Both were good winners at the Festival and I think both would get the trip.
"It's a very difficult one and we'll let it run to the wire."
