Ulster duo McCullough and Wilson set for Ireland debuts against Japan

ULSTER forwards Matt McCullough and Roger Wilson look set to make their international debuts when Ireland take on Japan in Osaka on Sunday (6am Irish time).

There could also be a first cap for scrum-half Kieran Campbell in a side likely to feature an experienced spine in the starting line-up.

They are three of nine uncapped players on the tour squad that is missing 12 regulars.