SA assistant coach Dick Muir admitted he had never seen such a poor performance from a Springbok front five as they went down to Leicester on Friday.
English club champion Leicester stunned Rugby World Cup holder South Africa 22-17 at Welford Road on Friday.
The Springboks have arrived in London for the start of their five-match tour, which kicks off against Leicester Tigers on Friday.
Argentina ended the World Cup the way they had started it, running in five tries to tame France 34-10 in an ill-tempered third-place playoff at the Parc des Princes on Friday.
