Matthew Rees suffered his injury after 30 minutes against Australia
Wales and British and Irish Lions hooker Matthew Rees is on schedule to be fit for the Six Nations opener with England at Twickenham on 6 February.
The Scarlets star was expected to be out for at least three months after suffering a groin tear in Wales' 33-12 defeat by Australia on 28 November.
Boss Nigel Davies says Rees is among a number of injured Scarlets who should return to fitness in the coming weeks.
They include Tavis Knoyle, Regan King, Morgan Stoddart and Martin Roberts.
The Scarlets have already revealed the shoulder injury Stephen Jones sustained in their recent win at Newport Gwent Dragons is minor.
Rees is expected to join the Wales fly-half in returning against London Irish in the Heineken Cup on Sunday, 17 January with Davies stating: "He'll be available next week."
New Zealand centre King is in the final phase of recovery from tearing a hamstring from a bone in defeat by Leinster in February.
Back-three player Stoddart suffered a hamstring tear training with Wales during November as he filled in for regional colleague Mark Jones (knee).
Wing Jones and flanker Dafydd Jones (shoulder) are around a month away from returning while tight-head prop Rhys Thomas (foot) could return a few weeks earlier.
There is also positive news for the Scarlets on the other side of the scrum where Iestyn Thomas is due back after a short term injury problem.
Davies is also looking forward to a forthcoming meeting between regional coaches and Wales boss Warren Gatland to discuss player fitness issues.
The Scarlets have also arranged for Wales conditioning coach Craig White to visit them next week.
Davies said: "Obviously most of our injuries have occurred in the Welsh camp so we more than welcome that.
We've got a couple of players coming back who may well be involved nationally
"And I think it's important because for the period that we have the players with us we know what their injury status is, we know where their rehab status is.
"And to have that crossover between national and region is very important. We've got a couple of players coming back who may well be involved nationally, people like Matthew Rees.
"So it's important that information transfer goes on.
"Someone like Morgan only played one game, then he was straight back into the Welsh squad and got injured during training.
"So again, I think it's about working together - that's key.
"We've been in touch with Craig White. He's coming down on Monday to meet us. We are going to go through our players with him so we've initiated that."