Kauto Star won his previous King George's by eight and 11 lengths
Paul Nicholls' Kauto Star heads a field of 11 for the King George VI Chase at Kempton Park on Boxing Day.
The 2007 Cheltenham Gold Cup winner is bidding to become the second horse, after Desert Orchid (1988-90), to win the Christmas race three years running.
War Of Attrition has withdrawn, opting for the Lexus Chase at Leopardstown.
But Old Vic and Exotic Dancer, who were second and third last year, go again, while Voy Por Ustedes steps up to three miles for the first time.
Voy Por Ustedes is a former Queen Mother Champion Chase winner and, like Exotic Dancer, is owned by Sir Robert Ogden.

Supplementary entry Snoopy Loopy, who took advantage of a dramatic final-fence exit by Kauto Star to take the Betfair Chase, represents Peter Bowen.
Nigel Twiston-Davies runs Paddy Power Gold Cup winner Imperial Commander.
Completing the line-up are Air Force One, Briareus and Mont Misere.