"Laura's our most-decorated women's player who has consistently achieved the highest honours in the game.
"She's very capable, has served rugby league in this country with distinction and was always going to be the best choice for our team.
"She's a dedicated, loyal and genuine team-mate who is well respected by her peers. She leads by example and demonstrates sound leadership in her playing ability, too."
Previously with the Papakura Sisters, Mariu has played in each of the five women's World Cup tournaments played so far – the first three all won by the Kiwi Ferns – and also represented the Kiwi Ferns in each of their three appearances at the NRL Nines at Eden Park in 2015, 2016 and 2017.
Mariu's contribution to rugby league was recognised in this year's Queen's Birthday honours when she was made a Member of the New Zealand Order of Merit (ONZM).
Along with Warriors teammate Apii Nicholls, Mariu is now a constable with the New Zealand Police in the Counties Manukau district.
Laura Mariu
Born: December 2, 1980
Birthplace: Auckland, NZ
Club: Manurewa Marlins
Position: Loose forward/halfback
Rep Honours: Kiwi Ferns (2000-2018), World Cup (2000, 2005, 2008, 2013, 2017), NRL Nines (2015, 2016, 2017), Counties Manukau Stingrays
Occupation: Constable, New Zealand Police
To get the day's top sports stories in your inbox, sign up to our newsletter here