London Irish flanker Ofisa Treviranus will captain Samoa in their historical Test against New Zealand in Apia on July 8.
The Test is the All Blacks' first in the Pacific Islands and Treviranus admitted that his appointment came as a surprise when it was announced during a meeting between the Samoa Rugby Union and team members on Sunday.
"When I heard that, I was a little nervous," he told TVNZ.
"I thank God for this opportunity. It's not going to be an easy one. I didn't expect this to be honest."
The 31-year-old, who made his Test debut in 2009, will be under pressure as the captain of a Samoa side which must still be named.
"It is a great honor to be asked to captain this side as we prepare to host the All Blacks," Treviranus added.
"I know that my primary job is to earn my own selection into the starting team and then from there I will do my best to provide the leadership that's been asked of me."
Treviranus was part of the Samoa Sevens squad when they won the world title in 2010 before bursting on to the 15-man scene. He first made his mark as with Irish club Connaght before moving to London Irish in 2011.
Samoa coach Stephen Betham is confident his new captain will do well in his new role.
"Ofisa is a strong force in the Manu Samoa environment and he has the respect of the players on and off the field," said Betham.
"Ofisa has previously captained the Samoa Sevens team and was a cornerstone player of the Sevens team that won the Sevens World Series in 2010.
"We congratulate him and we know that he will take this responsibility with great dignity and humility."