Team New Zealand arch-nemesis Jimmy Spithill will sail for Italian syndicate Luna Rossa at the 2021 America's Cup.
The Australian-born Spithill, who skippered Oracle Team USA to two America's Cup victories in 2010 and 2013, announced his move on Wednesday (NZT).
His come-from-behind 2013 win against Team New Zealand made him a villain in Kiwi eyes before his third run in 2017 ended in comprehensive defeat.
Team USA were outgunned 7-1 by the faster New Zealanders.
Spithill also helmed Luna Rossa in the 2007 challenger trials, reaching the Valencia finals before losing to Team New Zealand.
"With his huge sports and technical experience on high-performance sailing boats, Jimmy brings additional strength to team Luna Rossa," the team said.
Team USA's status remains unclear ahead of the Auckland 2021 meet.