In just 60 seconds, Love Island winner and Ireland Rugby 7s International, Greg O'Shea breaks down all you need to know about who Ireland are facing in the next Rugby World Cup game.

Follow Ireland v Japan on Saturday (kick-off 8.15am) via the live blog on RTÉ.ie/Sport andthe NewsNowApp, watch live on RTÉ2 from 7.30am or listen to live match commentary on RTÉ Radio 1.