The Aucklander is on the UFC 219 card on New Year's Eve in Las Vegas, a rare achievement for a Kiwi.
Reid Harker won't do it on his own though, with a Kiwi legend guiding him off the track as well.
Sir John filled the roles of a rugby player and headmaster in his life, but what he did for those around him in those roles is what set him apart.
The All Blacks have named a strong line up to face Manu Samoa but are still keeping tabs on the Lions.
The trio could be in line to start a Test match together when the All Blacks take on Samoa on Friday.
1 NEWS understands Parker will work solely with Higgins after DUCO's split.
Gatland's Lions play the Blues next Wednesday but his son Bryn will turn out for the Auckland side.
The British and Irish squad will touch down in Auckland today. You can watch a live stream on 1 NEWS Now.
The Hurricanes didn't risk playing Barrett against the Bulls after he complained of a sore head prior to the game, and Savea was knocked out during the match.
Parker was unhappy with background issues leading up to his fight with Razvan Cojanu.
New Zealand will face familiar foes, South Africa for the first time in pool play since the Rugby World Cup's inception.
1 NEWS understands the Lions will head from Wellington to Queenstown the day after the second Test, for four days.