Leinster are on the verge of signing Australia lock Kane Douglas as a replacement for the retiring Leo Cullen.
Head coach Matt O'Connor has confirmed their interest in the Waratahs second-row - who has 14 caps for the Wallabies.
"(Douglas) is a guy we have identified," O'Connor told the Irish Times. "The deal hasn't been done. If that gets across the line it would be positive for us.
"He fits the profile of what we were looking at and we'll have an announcement in the next couple of weeks hopefully."
Leinster have also been linked with Connacht's highly-rated back Robbie Henshaw but the Galway club appear to be intent on keeping him.
Connacht confirmed the signing of New Zealand great Mils Muliaina on Monday, and in their press release the club made several references to the Kiwi helping in the development of Henshaw.
The recruitment of Douglas - who will not come cheap - may mean Leinster will have to promote from within when it comes to replacing Brian O'Driscoll.
O'Driscoll's long-time centre partner Gordon D'Arcy said: "There seems to be talk of a second-row coming and how that's going to affect who we can sign for next year.
"It may have to come from within our ranks. We may have to use players a bit more across the board.
"Lukey can play a bit at 13. I can. We've got Brendan Macken here. It might need more of a squad effort to fill that position until somebody kind of slips in there and makes a real play for it."