Scarlets have suffered a setback with the news that in-form flanker James Davies has been ruled out for up to twelve weeks with an injury.
Davies suffered a foot problem in their victory over Zebre on Sunday, which is a major blow to the Welsh region as he is playing very well.
He will miss their remaining Champions Cup pool games and the festive period, with hopes of making Wales' Six Nations squad now over.
"It's definitely a goal for James and he's definitely been heading in the right direction," Scarlets head coach Wayne Pivac told BBC Sport.
"He's behind a couple of very talented players but he's making a good case.
"Statistically he is the top tackler for us, the most carries, he is at the top of the breakdown list for us, so across the board in attack and defence he is a very valuable player for us."
Pivac added about his player's absence: "He [Davies] will be one that's sorely missed, but in John Barclay there is a silver lining.
"John has done a massive job for us playing at eight when his preferred his position is seven and we are also able to welcome back [number eight] Morgan Allen this weekend.
"It is a setback but, knowing the kind of guy James is, he will get into his rehab work once he has had his surgery and fight to get that 12 weeks down to 10 or whatever it could be. We wish him well."