Fly-half Joey Carbery impressed before damaging his ankle in Ireland's victory over Italy in Dublin.
Joey Carbery was carted off with an ankle injury just over a month before the start of the Rugby World Cup as Ireland eased to a 29-10 victory over Italy at the Aviva Stadium.
The fly-half had been hugely impressive in Dublin on Saturday, scoring his team's opening try and controlling the game with ball in hand and the boot before he was forced off in pain with damage to his left ankle sustained at the bottom of a ruck.
Carbery looked emotional as he was taken off early in the second half, with Jack Carty coming on to replace Johnny Sexton's understudy.
Dave Kearney, winning his first cap since 2017, was also among the try-scorers as he staked his claim for a seat on the plane to Japan, and fellow wing Andrew Conway touched down in a man-of-the-match display.
Chris Farrell also caught the eye with Andy Farrell watching on as stand-in coach, while Jordi Murphy and Kieran Marmion crossed after the break.
Tries from Maxime Mbanda and Carlo Canna had put Italy in front during the first half and they caused problems with their kicking game, but Ireland were worthy winners over Conor O'Shea's men.
Lock Jean Kleyn made his presence felt and fellow Ireland debutant Mike Haley was given a 20-minute run out at full-back 42 days before Ireland face Scotland in their Pool A opener in Yokohama.
The main concern for Ireland will be the extent of the injury suffered by playmaker Carbery.