Ireland internationals Gordon D’Arcy, Dave Kearney and Rhys Ruddock are among 21 players who have been re-signed by Leinster for next season.
All three had been expected to ink new deals but today’s confirmation is a boost for Blues fans.
Former Ireland U-18 prop Sean McCarthy also joins from Jersey RFC.
There is no update on Leinster’s reported pursuit of Wallabies lock Kane Douglas but if that deal comes to fruition it could result in the release of project player Quinn Roux. Roux’s second-row rival Tom Denton is among those awarded new contracts.
Leinster coach Matt O'Connor said: "We are delighted to be able to announce these contracts in preparation for the season ahead.
“It's important for us as we continue to build that we have a group of players that are committed to the club and that share our vision for the future.
“While getting 22 contracts over the line is a huge undertaking the enthusiasm of the players was evident and we are very happy with where we are with our retention and recruitment drive.
"Sean McCarthy is a player that we have been keeping an eye on for a while now. He is a young and dynamic prop and we need to have quality players in this highly attritional position.
“While getting 22 contracts over the line is a huge undertaking the enthusiasm of the players was evident and we are very happy with where we are with our retention and recruitment drive" - Matt O'Connor
“Sean has been capped at underage level for Ireland and has performed well for Jersey RFC in the RFU Championship and B&I Cup and we look forward to welcoming him to Leinster in the summer.
"We are also delighted that a number of our academy players have stepped up and have been rewarded with either full or development contracts.
“We have seen over the last number of years that the Leinster Academy is developing top-class players and men and once again a number of them played significant roles when called upon in the PRO12 this season.
"There are one or two other players that we have identified as recruitment targets and we hope to announce them in due course but we have a big game this weekend against Edinburgh and the small matter of a PRO12 semi-final thereafter so all our focus will be on those two games.”
Sean McCarthy (from Jersey RFC)