Dedigout won his third race at Navan, when adding to his gains here in the Lismullen Hurdle in November 2013, by triumphing in this year's renewal of the Ladbrokes Ireland Boyne Hurdle.

Bryan Cooper came there travelling well to deliver his challenge on the 6/4 favourite in the straight.

Ruby Walsh was getting a tune out of Briar Hill going to the last, to lay it down to Dedigout, but the Mullins horse crashed out here to leave the 'jolly' with a decisive advantage on his way to a two and a half length verdict over Zaidpour

Winning trainer Tony Martin said: "He jumped well coming back to this trip. He always had the pace and the ground helped his stamina come into play.

"Ruby was a bit unlucky and who knows what would have happened if he'd stood up. Hopefully our fellow is okay in the morning, and there will have to be at least yielding in the ground wherever he goes."

In ante-post news for the World Hurdle Paddy Power go Dedigout 20 (from 25), Briar Hill 16 (from 25)

Boylesports: Dedigout 20/1 unchanged for the World Hurdle. (AM & EM)