"Felipe's progress in the past few years has been incredible, " added Cusworth, who has been part of Argentina's coaching set-up for five years.

BBC: Springboks wary of Pumas' power

Meanwhile, Argentina technical director Les Cusworth believes they have seen enough of the South Africans to believe the Pumas have a good chance on creating an upset.

BBC: Springboks wary of Pumas' power

Cusworth says in centre Felipe Contepomi and fly-half Juan Martin Hernandez, who have both been nominated for the International Rugby Board Player of the Year award, the Pumas have their own potential match-winners.

BBC: Springboks wary of Pumas' power