Ireland head coach Andy Farrell made nine changes from their narrow win over Australia, with Tadhg Beirne captaining for the first time and hooker Ronan Kelleher reaching a half-century of caps.

Ireland named four uncapped players in match-day 23 to face Japan

Jansen sent Connacht ahead 17 minutes in after powering over the line from a quickly-taken penalty, with Sean Naughton adding the extras