Fiji Warriors coach Senirusi Seruvakula believes that the Junior Japan team will be tough at this year’s World Rugby Pacific Challenge.

Junior Japan has reached the final against the Warriors a few times and has been rated as their toughest opponent this year.

Seruvakula says that Samoa A and Tonga A will bring in their usual physical games while Japan has always been doing the extraordinary.

Fiji will take on Samoa A in their first game of the World Rugby Pacific Challenge at 5pm Friday while Junior Japan will take on Tonga A at 2.30pm Friday.

Both games will be held at the ANZ Stadium.