Ireland and Wales won their Nations Championship openers against Australia and Fiji, while England were comfortably beaten by South Africa at Ellis Park.
New Zealand edged out France in Christchurch while ***** an beat Italy as the new tournament got under way on Saturday.
Scotland are playing Argentina in the final match of the opening round.
What is the Nations Championship? Who is winning? And when is next round of fixtures?
The Nations Championship pits the northern hemisphere teams who compete in the Six Nations - England, Ireland, Scotland, Wales, France and Italy - against southern hemisphere giants South Africa, New Zealand, Australia and Argentina, plus invited sides Fiji and ***** an.