O’Brien certain he has plenty left in the tank

Sean O’Brien’s form and fitness have both given cause for concern this season, but the Leinster back row remains confident that he still has plenty to offer as his last days with province and country approach.

The Carlow man will make the switch to London Irish after the World Cup and over a decade of devotion to the blue jersey will end as soon as this term’s league and European commitments are parked at the end of May.