Lock Maiakawanakaulani Roos will become the youngest-ever Black Ferns captain in their final Pacific Four test match against the USA on Saturday.
Roos, 21, has been named skipper, with Ruahei Demant and Kennedy Simon selected as co-captain's from the bench.
Black Ferns coach Allan Bunting has also handed debuts to exciting front rowers Esther Faiaoga-Tilo and Grace Gago.
Bunting praised Roos' leadership throughout their Pacific Four campaign, as the Black Ferns look to wrap up the title with their third straight win.
"Throughout my time in the Black Ferns, Maia has been exceptional, a true professional both on and off the field and her presence is widely felt," he said.
"A key member of our leadership group now, her daily habits and actions transition into consistent performance.
"She is a good human and is always looking out to help others. We have great confidence in her captaining the Black Ferns on Friday."
New Zealand play the USA at Ottawa on Saturday, which will be followed by the final game of the series between hosts Canada and Australia.
Black Ferns: 1-Esther Faiaoga-Tilo, 2-Grace Gago, 3-Amy Rule, 4-Joanah Ngan-Woo, 5-Maiakawanakaulani Roos, 6-Lucy Jenkins, 7-Kendra Reynolds, 8-Liana Mikaele-Tu'u, 9-Iritana Hohaia, 10-Rosie Kelly, 11-Grace Steinmetz, 12-Grace Brooker, 13-Amy du Plessis, 14-Kelsey Teneti, 15-Tenika Willison.
Reserves: 16-Georgia Ponsonby, 17-Phillipa Love, 18-Tanya Kalouniavale, 19-Chelsea Bremner, 20-Kennedy Simon, 21-Arihiana Marino-Tauhinu, 22-Ruahei Demant, 23-Renee Holmes.
