It comes just a week after Beauden Barrett and his wife, Hannah announced the birth of their third child.
The announcement has been met with celebrations from friends and followers.
“Congrats fam can’t wait to see Louie in his first chiefs kit,” the Chiefs rugby team wrote.
“Congrats team! Well done Mum,” added fellow All Black Anton Lienert-Brown.
The Waikato power couple only revealed the pregnancy on social media in October, after a family holiday in Fiji, saying the baby was due in February.
“Six months growing our biggest blessing 💛 Mum & Dad incoming February, 2026," O’Sullivan and MacKenzie captioned a photo showing the couple in a tropical setting.
O’Sullivan and McKenzie first confirmed their relationship through an Instagram post in 2024, which O’Sullivan captioned “a decade later”.
Earlier last year, McKenzie purchased a property south of Hamilton. He is understood to have officially taken ownership in May, with O’Sullivan believed to have moved into the house in June.
McKenzie was born in Invercargill, but he moved to Hamilton for rugby.
He made his provincial rugby debut for Waikato in 2014 and debuted for the Chiefs in 2015 and the All Blacks in 2016.
While playing rugby, McKenzie attended the University of Waikato, studying for a Bachelor of Communications.
O’Sullivan is the daughter of horse racing power couple Lance and Bridgette O’Sullivan.
Georgia has studied for a Bachelor of Commerce, majoring in Marketing and Business Management, at Victoria University of Wellington.
She and her sister Caitlin recently started their own marketing and social media agency called O’Sullivans.
