Kempton hosts the running of the prestigious Gr1 Ladbrokes King George VI Chase at 16h30 on Tuesday.
The famous 3-mile chase, likely to be run on good to soft ground, has attracted a high-class field of eight.
Willie Mullins raids with the 176 rated Allaho, a dual winner of the Ryanair at Cheltenham.
The nine-year-old won the 2022 Gold Cup at Punchestown over 3-miles so should have no problem with the trip.
Allaho won the Clonmel Oil Chase last month, his first start for over eighteen months after an injury layoff.
He won comfortably and will be sharper for that and ready to give his best on Boxing Day.
His rivals all have something to prove.
Bravemansgame has been a beaten favourite on both his starts this season, although his jockey Harry Cobden is confident Bravemansgame is ready for all of them in this race which has been the long-term target.
Shishkin didn’t fancy it at Ascot and must prove that he wants to race.
Gerri Colombe may instead run next week in Ireland, while The Real Whacker must improve and put a moderate reappearance behind him when pulled-up at Cheltenham last month.
Earlier on the card at 15h55, the mighty Constitution Hill makes his belated seasonal return in the Gr1 Ladbrokes Christmas Hurdle.
Run over 2-miles, the Nicky Henderson star has only five rivals to contend with and is rated 26lbs higher than Rubaud who is next best.
The Kempton first is off at 14h45.