Un De Sceaux is all set to take on old adversary Altior in the Matchbook Clarence House Chase at Ascot.
The former has won Saturday's Grade One contest for the last three years but was put in his place when the pair finished first and second in the Tingle Creek Chase at Sandown last month.
Un De Sceaux, trained by Willie Mullins, has not run since - while Altior has gone on to win the Desert Orchid Chase at Kempton.
The two were among just four horses let in the feature event at the five-day confirmation stage - with final declarations due on Thursday morning.
Un De Sceaux's part-owner Colm O'Connell said: "We're leaning towards running, as long as he's fit and well in the morning.
"At one stage the ground was putting us off. But there's rain around - and we went over his form again, and he did win a Ryanair on good ground. He's a racehorse at the end of the day, and it would have been hard to take on Saturday seeing a fit and healthy horse stood in his stable when there was a small field for a Grade One he's won three times already.
"We would love to get revenge on Altior - and Fox Norton too, because he beat us at Punchestown! Ultimately, the decision rests 100 per cent with Willie, though."
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