The Leicester Tigers wing received a late call-up for Friday’s match against the Barbarians at Thomond Park in Limerick after illness to Shane Horgan and he has been retained with the squad which flew out to New Zealand on Saturday.
A statement from the Ireland RFU said: “Shane Horgan, who was selected to play against the Barbarians, pulled out of the game with a stomach complaint that required further investigation. He will continue to undergo tests and has not travelled with the squad today to New Zealand.
“A decision on whether he will join the touring party will be made later this week.
"Johne Murphy has travelled and will remain with the squad irrespective of the outcome of Shane Horgan being able to join the tour.”
Ireland centre Fergus McFadden was ruled out of the tour after suffering a fractured jaw in the 29-23 defeat by the Barbarians, while hooker Jerry Flannery strained a calf muscle. Uncapped Munster hooker Damian Varley has joined the squad for the tour until a decision is been made on Flannery’s injury.
The Ireland squad, including Leicester Tigers captain Geordan Murphy, departed from Shannon airport on Saturday morning, bound for Auckland ahead of the first game of the tour on June 12 against New Zealand.