The former All Black first five hung up his boots in 2011 but the drive to compete remained firmly entrenched.
The 49-year-old is a dab hand with a squash racquet but golf is his new love.
And the former Highlanders head coach will make his metropolitan pennants golf debut for the Otago Bombers today.
The Bombers are playing their clubmates, the Otago B52s, at Balmacewen.
Brown declined to be interviewed when contacted for comment.
But he did say he was a little nervous and would prefer to duck the spotlight.
Otago Daily Times golf correspondent Michael Minty wrote Brown might hold the key to victory in the No 6 slot.
He is going up against the in-form Lewis Harper in what could be the defining match.
Brown’s team-mate, Ben Patston, said they were looking forward to playing with him.
"He’ll be a bit nervous because golf is so different to rugby, isn’t it," he said.
"But he is one of those guys. Even though he is a celebrity in that rugby world, he is so humble and down to earth.
"He is just a good rooster who loves playing golf with the boys.
"We did not know how much of a golfer he was at first.
"But as soon as we started playing with him we realised he is a pretty tidy golfer. And he fits our culture so well.
"We had a meeting before the first game and he spoke about what it means to be a high-performing team and it was all about culture and the values that he has run with and that was an eye-opener for the boys. That can only help us."
Brown played 18 tests for the All Blacks between 1999 and 2001. He likely would have played a lot more, but his tenure coincided with Andrew Mehrtens and Carlos Spencer.
He was an Otago and Highlanders favourite, though.
Brown scored 857 points in 83 Super Rugby games for the Highlanders and amassed 847 points for Otago in 71 games.
