Grand Slam winner Larmour, 22, will make his World Cup debut at the Yokohama International Stadium on Sunday as Ireland’s starting full-back, with Conway making his tournament bow on the right wing after head coach Joe Schmidt named his matchday squad to the face their Six Nations rivals this morning.

Brian O'Driscoll will be out of action for three-four weeks after an X-ray confirmed a sinus fracture and deep laceration under his right eye, sustained in last night's World Cup warm-up against Bayonne.

Leinster 17 Munster 15