Argentina have beaten South Africa 26-24 in their Rugby Championship Test at home in Salta.
The Pumas led 13-3 at half-time.
It's just their second win over the South Africans in 24 meetings, and the second in as many seasons.
The Springboks came from behind to beat them last weekend and were within minutes of doing it again, after clawing their way back to lead 24-23.
But a very late penalty sealed the victory for the Argentineans.
On Saturday night the All Blacks beat the Wallabies 29-9 in Wellington, to retain the Bledisloe Cup.