Ulster wing Andrew Trimble has been sidelined for at least a week after picking up a fractured finger during the match against Namibia.
Fit-again Leinster winger Shane Horgan comes into the side as Trimble's replacement to face Georgia in Bordeaux on Saturday night in the sole change to the side that failed to fire against African minnows Namibia.
Ireland coach Eddie O'Sullivan revealed that Trimble would have been dropped even if he hadn't been injured, given Horgan's return to full fitness and having been sidelined since the warm-up defeat to Scotland last month.
But Trimble's absence is still a concern for O'Sullivan however, with the 22-year-old also a doubt for the crunch game against France.
" It transpired that it is a very small fracture at the top of the metatarsal which will keep him out probably for a week," said O'Sullivan.
As expected, O'Sullivan has stuck by the side that under-performed so badly last Sunday.
"I think we are a better team than that. What I have always done in situations when the team have come up short of expectations, is to back them and give them a vote of confidence to put it right."