Forbes is the most capped player in world sevens series history, playing in 89 World Series tournaments and a record 512 games.
The 34-year-old won 26 tournaments and six World Series titles with the All Blacks Sevens.
He also captained New Zealand to gold at the 2010 Commonwealth Games and to the World Cup title in 2013.
Forbes was named International Sevens Player of the Year in 2008 and has been the recipient of the Richard Crawshaw Memorial Trophy for Sevens Player of the Year at the New Zealand Rugby Awards in 2007, 2008 and 2014, the most wins by any player.
