Jack Carty will create when Ireland face hosts Japan in Saturday’s World Cup battle in Shizuoka his second Test beginning.
The Connacht fly-half will pilot Ireland’s backline with boss Joe Schmidt not prepared to risk Johnny Sexton, who has nursed a leg issue.
Joey Carbery is inserted again after ligament trouble and requires a seat on the bench.
Carty impressed the seat in the closing stages of Ireland’s 27-3 win in Yokohama, and now the eight-cap playmaker gets the chance to impose his existence.
Responsibilities were ceded by sexton to Conor Murray early in Ireland’s win also was pulled straight after his side attempt.
Tuesday was not trained fully on by the Leinster star, and Schmidt has chosen not to take any chances with the 2018 World Player of the Year.
Keith Earls and rob Kearney go back getting missed the Pool A opener against Scotland with Ireland making four changes to their starting line-up.
His calf criticism has shaken off and Earls is currently over his thigh concern.
Even though Bundee Aki also finished all of the injury checks and returned to full training, head trainer Schmidt opted not to risk the battering ram centre of Connacht. Chris Farrell begins at inside centre, with the Munster man in fine form and fettle.
Jack Conan was due to start from the back-row but picked up an injury in training which Peter O’Mahony was pushed back into service.
Munster star O’Mahony failed a Head Injury Assessment (HIA) at Saturday’s win over Scotland, but immediately passed all the essential checks and returned to complete training on Tuesday.
Schmidt has ended up the identical package that dimmed the Scots, together using Rory Greatest as captain flanked in the front-row Tadhg Furlong and from Cian Healy.
James Ryan and Iain Henderson will continue their lock partnership that went in Yokohama since Ireland flexed considerable set-piece muscle from the Scotland of Gregor Townsend.
Ireland: 15 Rob Kearney, 14 Keith Earls, 13 Garry Ringrose, 12 Chris Farrell, 11 Jacob Stockdale, 10 Jack Carty, 9 Conor Murray, 1 Cian Healy, 2 Rory Best (c), 3 Tadhg Furlong, 4 Iain Henderson, 5 James Ryan, 6 Peter O’Mahony, seven Josh Van der Flier, 8 CJ Stander
Replacements: 16 Sean Cronin, 17 David Kilcoyne, 18 Andrew Porter, 19 Tadgh Beirne, 20 Rhys Ruddock, 21 Luke McGrath, 22 Joey Carbery, 23 Jordan Larmour