Sizing Europe team yet to decide between Queen Mother and Ryanair
A decision on Sizing Europe's target at Cheltenham is set to be left until the last moment.
Henry de Bromhead's stable star holds engagements in the Queen Mother Champion Chase and the longer Ryanair Chase.
Should connections opt for the Queen Mother, he would be attempting to regain the crown he won in 2011 and was second in last year.
De Bromhead said: "Strong cases can be made for both races and myself, and Alan and Ann (Potts, owners) will have to sit down and discuss everything much closer to the time.
"But we will leave it late. I don't want to give any indication either way because I don't know. Things can change day-to-day.
"It's looking unlikely that the ground will be soft at Cheltenham but if it did turn up soft or heavy, then that could make the two miles and five of the Ryanair less likely. So we will leave everything until closer to the time."
Sizing Europe can be backed at 7-1 for the Queen Mother behind red-hot favourite Sprinter Sacre, and 6-1 for the Ryanair.