Wales ended their Australia tour with a dramatic 36-35 victory against Queensland Reds in Brisbane on Friday.
Wandile Mlaba is set to make his SA U20 debut off the bench in Friday's final encounter of the World Rugby U20 Championship against Wales in Cape Town.
Wales lost their ninth successive Test match as Australia wrapped up a 2-0 series win by beating them 36-28 in Melbourne.
Wales slumped to their eight Test match defeat in a row despite a valiant display in a 25-16 loss to Australia in Sydney.
It's been a dream week for Sacha Feinberg-Mngomezulu, from being handed his first Springbok jersey to scoring his first points for South Africa.
They weren't always at their best but the Springboks did enough to dispatch a brave Wales side 41-13 at Twickenham Stadium as they made a successful return to action after almost eight months on the sidelines.