Pat Keane: Dominant Defi Du Seuil set to deliver definitive answer for punters

Keith O’Donoghue riding Envoi Allen at Cheltenham on Monday. Gordon Elliott’s charge is the choice in the opening race to maintain his unbeaten record, but faces by far his stiffest test to date. Picture: Dan Sheridan

If punters are ever going to put on their betting boots at Cheltenham this week, then it will be today, on a programme that may well tempt one to come out to play three times!