Munster are sweating on the fitness of a key trio ahead of their Heineken Cup semi-final with ASM Clermont Auvergne.
Captain Doug Howlett and Irish internationals Keith Earls and Donncha O'Callaghan are all battling injuries and are doubtful for the monumental clash in Montpellier.
But head coach Rob Penney is cautiously optimistic that they will pull through to make the clash.
"Earlsie is making progress," said Penney.
"We were hopeful he would have been available this last weekend but he just didn't come through training. He's close but we'll know more at the end of the week.
"Doug's trying hard, making slow progress but I'd have to say that's still right up there.
"Donncha never gets injured and for him to sustain the injury he's got is very frustrating. We'll get another report by Wednesday or Thursday.
"Donncha has no structural damage from what I understand, but it's one of those ones it could be two weeks or it could be one. He just has to see the specialist at this stage."
Munster crash to defeat in their all-Irish PRO12 clash with Leinster last weekend but Penney reckons his side can reap the rewards from lessons learnt.
"On reflection, I thought we gave it everything," said Penney.
"I was certainly not despondent. In tight matches little things make a big difference.
"There were a couple of things we let ourselves down on a little bit and a couple of things didn't quite go our way. All in all, we're on a good trajectory.
"Some of the guys felt it was even more physical than the game with Harlequins and I suppose you could expect that in a derby game against the European champions."
The Limerick-based province face Newport Gwent Dragons this weekend and Penney admits he will wrap some of his stars in cotton wool ahead of the European showdown.
"There will have to be some changes," added Penney.
"You can't keep battering the same group of players and expect them to perform in a fortnight's time so there will be some changes which is really great for some people who haven't had much of an opportunity to get the jersey on."
As part of the build-up to next month's Cardiff 2014 Heineken Cup and Amlin Challenge Cup finals weekend, ERC has joined forces with the WRU, Cardiff Blues and adidas to develop an annual grassroots community rugby programme targeting young players.
The Ulster Rugby full back, Jared Payne (No 15), has been suspended for two (2) weeks following an independent Disciplinary Hearing in Dublin arising from the Heineken Cup quarter-final match against Saracens at Ravenhill Stadium on Saturday, 5 April.