Viljoen at fullback for Sunwolves

Samoa star and former Hurricanes player Tusi Pisi will start at flyhalf, while Japan hooker Shota Horie will captain the side.

Meanwhile, the Sunwolves announced three new signings ahead of this year's Super Rugby competition.

Scrumhalf Kaito Shigeno, hooker Futoshi Mori and lock Kazuhiko Usami have all linked up with Sunwolves and are expected to play a part in Saturday's match.

Date: Saturday February 13

Venue: Toyota Stadium, Aichi

Kick-off: 14.00 (05.00 GMT)

Referee: TBC