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Foundation RaboDirect Rebels Assistant Coach Nathan Grey has confirmed he will leave the Club at the end of the season, and link with the NSW Waratahs.
The former Wallaby will return to Sydney with his family and join the Tahs, a club he represented on 94 occasions, overseeing the defensive performance and contact skills of the squad.
Upon finishing his final season as a player with the Waratahs in 2005, Nathan moved to Japan, where he played and coached with Kyushu Electric Power Company's team, Kyuden, for five years.
In 2011, Nathan joined the Melbourne Rebels as Defensive Coach, which then evolved into Attack Coach under Damien Hill. His new position at the Waratahs will allow him to continue in a defensive skills and contact capacity, an area which Nathan wishes to pursue.
Finishing his third year term at the Club, Grey spoke of his love for the city of Melbourne, as well as the the strong foundation the Club has set for Rugby Union in Victoria.
"The Family and I have loved our time here in Melbourne," said Grey, "We have forged friendships for life through a close network of friends, both in and out of the Melbourne Rebels Club, with the kids blossoming and enjoying their school time and all that Melbourne has to offer.
"To set up a new team in the best provincial Rugby Union competition in the world far outweighs the difficulties and stress of competing at this level.
"I have learnt from all the coaches in my time here and thank Rod Macqueen, Mark Bakewell, Damien Hill, Matt Cockbain, John Muggleton, and Matt Tink for assisting me in my development to become a better coach."
Grey also highlighted the growth of the playing group and the opportunity the Rebels have provided for many of its players, which has spurred the 38 year old on to continue to challenge himself as a professional coach.
"The growth of a playing group has been the driving force behind my reasoning to become a coach. To help young players find their confidence and expand their skill set to become a dominant force on the field is at the core of the reasons why I do my job.
"The Rebels Rugby program provides a pathway for future Super Rugby players and Wallabies and I am proud to have contributed to that program, along with all the other staff at the Club.
"The Melbourne Rebels are on a great journey and I have no doubt expanded success will prevail with a great sporting city as its back drop and great members and supporters barracking for the Club.
"For 2014 and beyond, led by Tony McGahan, I have no doubt the roster for next year will be a united group and a force to reckoned with.
"The Rebels are here forever and I am honoured to have contributed to that."
The popularity of rugby in Japan has continued to grow ahead of their inclusion in the 2016 Super Rugby competition.