"I’m just very happy, we worked very hard," South Africa’s stand-in captain Bongi Mbonambi said.
"It is always tough to come and play here in Argentina.
It was a proper test match but this was a good game for us before the World Cup."
And they got another shortly afterwards as Libbok’s cross-kick was collected by wing Moodie and he had an easy run-in to score.
The win may have come at some price after the Boks' experienced centre Lukhanyo Am was forced off at halftime with a knee injury.
Persons:
Canan Moodie, Agustin Creevy, Jacques Nienaber, Mapimpi, Moodie, Manie Libbok, Bongi Mbonambi, scrumhalf Gonzalo Bertranou, Creevy, Libbok, Franco Mostert, Nick Said, Hugh Lawson
Organizations:
Argentina, Rugby World, Springboks, Lukhanyo, Thomson
Locations:
South Africa, Buenos Aires, Argentina, Argentine, Bertranou, Mapimpi