Romania will open up their Pool D campaign against a much-changed France side at London's Olympic Stadium.
Kick off there is at 8 o'clock
The Ireland squad have been training at St. George's Park ahead of this Sunday's game against Romania.
Another side making their first appearance of the tournament are Australia – they take on Fiji in Cardiff from 4.45pm.
The day begins with surpsise packages Japan's meeting with Scotland at Kingsholm.
Following the Blossoms' win over the Springboks on Saturday, Japanese head coach Eddie Jones is confident they can repeat the trick today.
Meanwhile, South Africa head coach Heyneke Meyer has made eight changes to his side for their meeting with Samoa.
