The Colm Murphy trained Big Zeb is 8/11favourite with sponsors Paddy Power for the Grade 1 Dial-a-Bet Chase at Leopardstown on Tuesday.
The ten-year-old son of Oscar faces five rivals in this year's renewal and will once again have to overcome the challenge of Golden Silver to prevail.
Last year Big Zeb had 1 3/4 lengths to spare over Golden Silver at the line with another Willie Mullins trained runner Scotsirish (also runs tomorrow) a further length back in third.
Big Zeb comes into this year's contest in top form having beaten both Noble Prince and Forpadydeplasterer in last month's Fortria Chase at Navan.
Those two rivals are set to line up again tomorrow with Forpadydeplaster tried in first time cheekpieces.
Jessica Harrington's Saludos completes the sextet.
