It's been labelled a "tectonic shift", set to shake up the world of rugby union, but what is the Nations Championship - and how will it revolutionise the game? Here's all you need to know…
Scotland were booed off at Murrayfield after botching a 21-0 lead in a remarkable 33-24 defeat at the hands of in-form Argentina.
Wales began the Steve Tandy era with an emphatic defeat as Argentina claimed a record 52-28 victory in Cardiff.
Full schedule for the 2025 Autumn Nations Series, as England, Ireland, Scotland, Wales and France welcome New Zealand, South Africa, Australia and Argentina.
Highlights from The Rugby Championship clash between Argentina and South Africa at Twickenham.
Siya Kolisi was full of pride after beating Argentina to win back-to-back Rugby Championship in Twickenham.
South Africa clinched back-to-back Rugby Championship titles for the first time, as a second-half surge sealed a comeback 29-27 victory over Argentina at Allianz Stadium.
Bautista Delguy collects his brace with an intercept try from Cheslin Kolbe's wild pass.
Malcolm Marx goes over for South Africa to gain the lead against Argentina.
England's centre Fraser Dingwall has been ruled out of their clash against Argentina at Allianz Stadium on Sunday, with Max Ojomoh replacing him.
Live text commentary from the final day of the Rugby Championship as title-chasing South Africa face Argentina at Twickenham.
Highlights from the Rugby Championship clash between South Africa and Argentina at King's Park
South Africa thrashed Argentina 67-30 in the Rugby Championship on Saturday to move top of the table with one round to play.
New Zealand suffered their heaviest defeat of all time in a 43-10 home loss to South Africa in the Rugby Championship on Saturday.
Santiago Carreras scored 23 points off the tee as Argentina punished Australia's poor discipline in a 28-26 win in the Rugby Championship on Saturday.
Highlights from the Rugby Championship clash between Australia and Argentina in Sydney.
Argentina claimed a first ever home Test victory over New Zealand as they beat the All Blacks 29-23 in Buenos Aires.
Highlights from the The Rugby Championship clash between Argentina and New Zealand.
Sevu Reece and Samisoni Taukei'aho each scored two tries to propel New Zealand to a 41-24 win over Argentina in their opening match of the Rugby Championship.
Full results from the 2025 Rugby Championship as South Africa retained the title.
©2026 Sky UK
