Audio Preview: Aviva Stadium’s O2 Challenge

Giving their thoughts ahead of the O2 Challenge at the Aviva Stadium on Saturday are Connacht/Munster coach Nigel Carolan, Leinster/Ulster coach Colin McEntee, Leinster/Ulster captain Luke Marshall, Leinster/Ulster backs coach Jonny Bell, Connacht/Munster captain Mark Dolan and Connacht/Munster manager Ian Sherwin.