Rugby World Cup Ireland v Argentina: Ulster ace Henderson backed to hunt down the Pumas
Ulster's Iain Henderson has been urged to become an inspirational leader for Ireland as they prepare to take on Argentina in the World Cup quarter-finals this weekend without three members of their starting pack.
Joe Schmidt's side meet the Pumas at the Millennium Stadium on Sunday (1pm) without Paul O'Connell, Peter O'Mahony and the banned Sean O'Brien.
Scrum coach Greg Feek said: "All of them need to step up and become leaders in their own right now.
"We can't wait for someone to do things, we have to stand up and do it.
"Iain Henderson did well off the bench against France and hopefully he can keep his form going."
The 23-year-old could have taken the spot of either O'Connell or, if Schmidt had decided to move him into the back-row, O'Mahony but he will be at lock when the team is revealed today at 1.30pm.
Instead, Jordi Murpy could take the place of the Munster captain who injured his knee against France last weekend.
Chris Henry will fill in for O'Brien in the seven jersey with Rory Best and Tommy Bowe taking the Ulster contingent to four.
Both Johnny Sexton and Keith Earls will have to come through this morning's training session unscathed if they are to join Ireland's bid to reach a first ever World Cup semi-final.
If Sexton's groin flares up, Ian Madigan would deputise with Ulster's Paddy Jackson coming onto the bench.
Even if Earls doesn't make it, it is thought his outside centre place would go to Luke Fitzgerald rather than Darren Cave.