Jonathan Sexton will not be rushed back into action by Leinster to ensure he does not suffer a relapse in his recovery from a run of injuries.
The Ireland fly-half missed last weekend's victory over Australia after sustaining a minor hamstring injury against New Zealand in the previous match.
It is the latest in a long line of injuries suffered by the 31-year-old and he has been granted recovery time by his club side to ensure he returns fully fit.
Leinster coach Leo Cullen expects him to miss the next month of action, which will give Sexton every chance of being fit for the start of the Six Nations in February.
"Johnny's just one of a number of guys who we're trying to manage back. I know there is huge scrutiny because he's such a huge player for Leinster and Ireland, but we'll assess him like we will all of the other players," said Cullen.
"It's just to try and get his body right. It's about trying to make sure next time he comes back and plays, whenever that may be, he's in the best possible shape
"There's a lot of joined-up thinking [between Leinster and Ireland]. He's one of the key assets in Irish rugby, one of the most important guys. But at the end of the day, the most important thing is what's best for Johnny.
"There has been several discussions. What we're trying to get to the bottom is, we just want to know what's right for Johnny, how do we make him stronger and more resilient.
"I hear talk about his resilience and his injury profile, but you think of the amount of games he has played, roughly 250. It's a lot of games.
"If he takes a week or takes three or four weeks, whatever the case may be, we'll just do what's right by Johnny."