"As we've seen in previous years, the Battle at the Brewery is a great day in regional New Zealand as we warm into the Super Rugby season and get to see some of rugby's biggest stars get back to some grassroots footy," he said.
"We're thrilled at the opportunity to play the curtain raiser and, as Mark says, to support a good cause. With a crowd of 5000 expected, and the local community in full swing behind it, I'm sure it's going to be a great event."
As well as Mitchell and O'Connor the Parliamentary team will include Ministers Kris Faafoi, Stuart Nash and Penni Henare as well as MPs Kieran McAnulty, Clayton Mitchell, Paul Goldsmith, Alfred Ngaro, Paul Eagle, Greg O'Connor and Hamish Walker.
Deputy Prime Minister Winston Peters will be there giving his support along with Speaker Trevor Mallard and National's Gerry Brownlee.
"While we're used to being on opposite sides of the house and getting stuck into each other, New Zealand's MPs tend to get along reasonably well and the Parliamentary rugby team is a great opportunity to play alongside each other for a good cause," Mitchell said.
Mangatainoka Barbarians RFC team manager Hamish Clentworth is equally excited about the curtain raiser and having the opportunity to play the Parliamentary rugby team for the first time. His team will feature a line-up of former provincial, national and overseas players.
Tickets for Battle at the Brewery are on sale but numbers are limited to ensure an intimate atmosphere at the game.
Ticket holders are encouraged to turn out in their regional colours and, in addition to two great games of rugby, will also enjoy pre and post-game entertainment.
There will also be prizes up for grabs for fans who go above and beyond with their fancy dress.
All tickets are available to purchase from www.tuihq.co.nz or at the Tui Brewery in Mangatainoka. GA tickets are also available from local PGG Wrightson and Norwood Stores.