High Quality Content by WIKIPEDIA articles! The 2011 Tri Nations Series was the sixteenth annual Tri Nations rugby union series between the national rugby union teams of New Zealand, Australia and South Africa, respectively nicknamed the All Blacks, Wallabies, and Springboks. It was also the last series in which only three teams participated, and the last under the Tri Nations name. In 2012, Argentina`s Pumas will join this competition, which will be rebranded as The Rugby Championship.