Ireland centre Robbie Henshaw has confirmed his move to Leinster from Connacht ahead of next season.
Henshaw, who has 17 Test caps, has signed a three-year deal with Leinster. Henshaw said: "I would like to thank Connacht Rugby, the IRFU [Irish Rugby Football Union] and Leinster for allowing me time to consider my future.
"This has been a long and difficult process and while I am sorry to be leaving Connacht I look forward to the next chapter of my rugby career at Leinster. The support I have enjoyed from the fans in the Sportsground and throughout the province is something that I really value and I want to thank them for four great years."
IRFU Performance Director David Nucifora said: "I am disappointed for Connacht that Robbie has decided to leave but pleased for Irish rugby that he has committed to a further three years. I know that the decision Robbie has taken to move from Connacht is not one he has taken lightly."
Leinster head coach Leo Cullen added: "We are delighted to have secured Robbie's signature for the next three seasons.
"Robbie is a huge talent and we have all seen that over the last few weeks and months with Ireland in the Six Nations and during the World Cup. We look forward to welcoming him into Leinster when this season is over and I am sure that our supporters would echo that view."
Leinster have also announced the signing of Ian Nagle from Munster along with a host of contract renewals: Michael Bent, Adam Byrne, Tom Daly, Peter Dooley, Tadhg Furlong, Dave Kearney, Cathal Marsh, Mike McCarthy, Jack McGrath, Ross Molony, Isa Nacewa, Sean O'Brien, Garry Ringrose, Mike Ross, Rhys Ruddock, James Tracy, Josh van der Flier.