A minute's applause will be held before tomorrow's crunch clash against Lambie's former club Hamilton that will allow a walk down memory lane for Archibald who recalls the mayhem of being a player under his charge.
Taqele Naiyaravoro put the Barbarians ahead for a third time just before the break, but Sergeal Peterson went in four minutes into the second period and Lambie's conversion put the Springboks ahead for the first time.
South Africa led 6-3 after an underwhelming opening quarter with Lambie kicking a couple of penalties and Nicolas Sanchez responding for Argentina with a three-point effort of his own.