Fiji's hopes of Pacific Nations Cup success have taken a huge blow with news that star winger Nemani Nadolo has made himself unavailable.

Next month Fiji will play Samoa and Tonga in the annual tournament but Nadolo has told coach John McKee that he will not be playing due to personal reasons.

The Crusaders winger will instead head home to Australia to "face" some issues, meaning Fiji will lose its most dangerous attacking weapon.

"At the end of the day we're rugby players but we're human as well," Nadolo said.

"There's things I need to sort out back at home."