Ireland centre Gordon D'Arcy has signed a new two-year contract with Heineken Cup finalists Leinster, the Irish RFU announced on Monday.
The deal means the 32-year-old will remain with Leinster until 2014.
A further 17 players have signed contract extensions including Isa Nacewa, Issac Boss, Leo Cullen, Eoin Reddan and Rhys Ruddock.
Leicester have also signed prop Michael Bent from Super 15 club Hurricanes and lock Tom Denton from Leeds Carnegie.
The Irish qualified forwards will join the province in the summer on two-year deals.
D'Arcy is Ireland's second most-capped centre behind his longtime playing partner Brian O'Driscoll.
He was in the 2009 Gland Slam team and has two Heineken Cup winners' medals.
"Gordon is a born and bred Leinster man and, since his debut in 1998, he has been a highly consistent performer," said coach Joe Schmidt added.
"His competitiveness and ability have added huge value both on and off the field.
"We are delighted Gordon will be extending his long association with his home province and I am confident that he will continue to make a positive impression on and off the field."
Fionn Carr, John Cooney, Mark Flanagan, Brendan Backen, Cullen, Nacewa, Thomas Sexton and Heinke van der Merwe have signed one-year extensions.
There were two-year deals for Leo Auva'a, Boss, Andrew Conway, Aaron Dundon, David Kearney, Ian Madigan, Reddan and Ruddock while Kevin McLaughlin has signed a three-year extension.