Wayne Smith will step down as New Zealand assistant coach after the Rugby Championship.
The former fly-half played 17 Tests for the All Blacks and first took up a coaching role with the world champions back in 1998.
Smith, who turned 60 last month, has decided to take a break from rugby union when the Rugby Championship finishes in October.
"It's unbelievable to think that I've been involved in playing and coaching with the All Blacks for 20 years, a third of my life." said Smith.
"I've had an incredible time and shared in some fantastic experiences. But it's time to hang up my coach's whistle for a while, take a bit of a hiatus, freshen up and spend some more time with my wife Trish and our family."
New Zealand Rugby will advertise for a replacement for Smith and All Blacks head coach Steve Hansen said his long-serving number two will be a hard act to follow.
Hansen said: "I've been lucky to have spent a lot of time with Wayne Smith over the years, firstly as a player being coached by him and, best of all, coaching alongside him with Canterbury, the Crusaders and the All Blacks.
"He's a man I have a huge amount of respect for and it's been an absolute pleasure working alongside him. However, it's an even greater honour to be able to call him a mate.
"He has an unrelenting passion for the game, he's always been innovative, prepared to speak his mind, and he's never allowed himself to stop learning. He's always been willing to share himself with others and be open to their ideas.
"Smithy has been a major contributor to not only New Zealand Rugby but also world rugby. Wayne has been such a wonderful ambassador for our game and our country as well.
"I knew it was time to let him finish when he asked my wife to convince me to stop pressuring him into re-signing. It's with sadness that we let him go, but it's also with the confidence of knowing that he has left an everlasting legacy which is all one can expect of an All Black man. Smithy is undoubtedly a true All Black legend."
|Spalletti: Inter board will decide my future|
|Munro blitz helps Black Caps progress despite defeat|
|Fabregas still wary of timeless Iniesta|
|Liverpool´s 30-goal hero Salah: There´s more to come|
|Valverde: Coutinho dropped for the good of Barcelona|
|Garcia floors Rios for ninth-round TKO|
|Ronaldo better than Neymar? No says Xavi|
|Donovan Mitchell caps NBA All-Star challenges with dunk success|
|Anderson outlasts Nishikori to reach New York Open final|
|Steve Nash, Ray Allen among Basketball Hall of Fame finalists|
|Kevin Love: It was necessary to clean house in Cleveland|
|Real Madrid hurt you with nothing – Xavi says PSG loss an injustice|
|Conte: Chelsea need perfect game to stop Messi and Barcelona|
|LeBron James thanks Ingraham as Cavs All-Star vows to speak his mind|
|Archer says Rays could have best rotation in baseball|
|Bubba Watson takes lead with 65 at Genesis Open|
|Inter in a fragile moment, says Spalletti|
|Groves batters Eubank Jr to retain WBA crown|
|Montpellier see off plucky Oyonnax, Ashton stars in Stade mauling|
|Booed Emery praises PSG´s mental strength|
|Cavani hails ´good reaction´ as PSG bounce back in style|
|Thiem breezes past Monfils to set up Bedene showdown|
|Mourinho wants referees to have final say on VAR|
|Genoa 2 Inter 0: Pandev piles misery on old employers|
|Manchester United to host Brighton in FA Cup quarter-finals|
|Leinster see off Scarlets as Munster come up short in Cardiff|
|New No.1 Federer earns gritty Seppi win to book Rotterdam final|
|Mata ´still up for VAR´ despite disallowed goal at Huddersfield|
|Valverde: Barcelona had to suffer at Eibar|
|Championship Review: Fulham end Villa run, Cardiff pounce|
|Resilient Kvitova ousts Wozniacki in Doha thriller|
|Huddersfield Town 0 Manchester United 2: Lukaku sends visitors through after VAR controversy|
|Toomua inspires Tigers win over Quins, Worcester beat Gloucester|
|Bayern Munich boss Heynckes hails game-changing Muller|
|Locadia benefiting from ´competitive´ Brighton - Hughton|
|Baby on board? Alba dedicates Barca goal to girlfriend|
|West Brom future ´not a decision for me´, says Pardew|
|Lions get De Bruin off to winning start|
|Paris Saint-Germain 5 Strasbourg 2: Cavani at the double in bounce-back win|
|Bar-celona! Messi posts unwanted record|
|Barca go 31 LaLiga games unbeaten to tie club record|
|Mourinho: I don´t know and I don´t care when Pogba returns|
|Brighton and Hove Albion 3 Coventry City 1: Locadia, Ulloa lead Seagulls to quarter-finals|
|EIbar 0 Barcelona 2: Suarez and Alba seal points as Orellana sees red|
|West Brom 1 Southampton 2: Rondon stunner in vain as Baggies drop out|
|Wolfsburg 1 Bayern Munich 2: Lewandowski spot-on after Robben´s penalty miss|
|I hope Cutrone finds a beautiful girlfriend so he can rest and make love - Gattuso|
|Wellens claims Ruta del Sol lead, Froome suffers puncture|
|Goffin forced to retire in Rotterdam following freak eye injury|
|Allegri denies Champions League ´obsession´ ahead of Turin derby|
|Barry, Evans start for West Brom after training camp incident|
|Bottas unaffected by ´Halo´ on simulation runs|
|Sheffield Wednesday 0 Swansea City 0: Carvalhal settles for replay on Hillsborough return|
|Management ´tiring´ but Zidane not ready to leave Madrid just yet|
|Thiago back for Bayern as Heynckes rests stars for Besiktas|
|Simeone urges Atletico fans to get behind Griezmann|
|Robben amazed by Guardiola´s impact at Manchester City|
|Three-way tie for lead in Oman as Pavon falls away|
|McIlroy frustrated by added scrutiny of playing with Woods|
|Morgan to take it slow with Stokes and backs Rashid|
|Pogba out of Man Utd´s Huddersfield trip with illness|
|A-League Review: Perth ´Panenka´ punished, 10-man Adelaide rescue late draw|
|Dragons and Rabbitohs see off Super League opponents|
|Robben targets two more years at the ´highest level´|
|Rashford and Herrera ´have a chance´ of making Sevilla trip|
|Mixed feelings for Tiger Woods after missed cut at Riviera|
|Emery defends PSG star Neymar after Madrid display|
|Nishikori stays hot in New York as Anderson awaits|
|Kevin Durant: Laura Ingraham´s ignorant comment was racist|
|Thiem sets up Monfils semi-final showdown|