Ireland are sweating over the fitness of full-back Rob Kearney after his arm injury proved to be more serious than initially reported.
Head coach Joe Schmidt was confident the Kearney would not be sidelined for long after he hurt his bicep during the latter stages of Ireland's 63-10 victory over Italy in Rome on Saturday.
"Rob got a bruise on his bicep, just with awkward contact," he told RTE.
"A couple of days should see him right."
But according to an Irish Independent report, the injury could require surgery in the coming days.
Kearney is doubtful for Ireland's remaining Six Nations matches against France, Wales and England and is set to miss his country's three-day camp in Monaghan.
If 30-year-old is sidelined, Simon Zebo is likely to move to full-back with Andrew Trimble set to come into the starting line-up on the wing.
Meanwhile, Robbie Henshaw, who came off with a dead-leg against Italy, is recovering well and is set to train with the team in Monaghan.