Ireland prop Tadhg Furlong is in contention to return for Friday's clash against Argentina after missing the defeat to New Zealand.
The tighthead prop was absent for the opening Autumn Nations Series fixture with a hamstring injury but trained with the team in Blanchardstown on Monday morning.
Tom O'Toole, who came on for Finlay Bealham in the second half of the 23-13 loss shortly before suffering a head injury, has been ruled out.
The Ulster front row will go through his 12-day return-to-play protocols.
Meanwhile, new head of athletic performance Aled Walters says there have been some "home truths" spoken in the aftermath of the disappointing loss at Aviva Stadium.
Andy Farrell's squad trained yesterday and today at the high-performance centre and Walter, who left the England set-up over the summer, was confident there would be a response on Friday.
"It’s such a good group to reflect and to be honest, so home truths, definitely the case," said the Welshman (above).
"And no-one shied away from it as well. I’ve probably heard more voices this week than I did in my first two weeks.
"Everyone is pretty intent on correcting a few things.
"From being an outsider previously, Ireland tend to react pretty positively to losses, don’t they?
"I don’t know if it’s because [they’re] not used to it or because the intent is we don’t go there again. I’d be very, very confident we’d get a good response on Friday."
Asked what the key message has been from the coaches following the error-ridden defeat, he added: "It’s interesting, it’s how quickly you can summarise and understand what went wrong.
"There’s a few clear things in Andy’s mind and the coaches’ minds.
"The job is pretty quick, we came in yesterday, we got started and that was getting to understand what didn’t work.
"They’ve covered a few different areas but it’s pretty clear what we have to get right to function and be at our best on Friday night.
"It’s only natural that there’s a bit of hurt, there’s no anger. It’s a group that doesn’t seem to be used to losing all that much.
"It’s probably an environment that’s been immediately down in the dressing room but as I understand Faz is pretty good at getting things back on track pretty quickly."
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