Bledisloe Cup

Bledisloe Cup is an international Rugby Championship contested annually by Argentina, Australia, New Zealand, and South Africa. Prior to the 2012 tournament, when Argentina joined, it was known as the Tri Nations. The competition is administered by SANZAAR, a consortium consisting of four national governing bodies; the Argentine Rugby Union, Australian Rugby Union, the New Zealand Rugby Union and the South African Rugby Union Bledisloe Cup 2017: What is it?

The southern hemisphere's premier international tournament, formerly known as the Tri-Nations, which sees Argentina, Australia, South Africa and New Zealand compete against each other across six rounds of matches each yeah.