South African referee Craig Joubert has retired from refereeing Test rugby at the age of 39.
Joubert will continue to referee in the Sevens World Series and will undertake a new role at World Rugby to identify referees.
Joubert was the youngest man to referee a World Cup final in 2011 - but had controversial moments in the Wallabies quarterfinal against Scotland last year and the Super Rugby final in 2014 when he wrongly penalised Crusaders flanker Richie McCaw to give the Waratahs their first title.
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