The former Wallaby and Brumbie's captain takes charge of Moana Pasifika's leadership role following the injury of Sekope Kepu in Friday's 37-17 loss to the Highlanders.
"I'm really excited for Christian, he's a very natural leader," said Moana Pasifika Assistant Coach Filo Tiatia.
"We have total confidence around how he leads, particularly off the field and what he brings on field.
"He's a captain at the highest level, he was a captain of the Brumbies and also had a bit of a leadership role in the Wallabies."