"I need to thank the clubs I have represented, the coaches - who have helped shape the player I am today - and the fans, both in New Zealand where it all started, and here in the UK, for their support and cheers."
Harlequins director of rugby John Kingston said: "The word 'legendary' is really over-used within the modern sporting world, but in the case of Nick Evans and his rugby playing career at Harlequins, it is the perfect description."