Glasgow Warriors back-row forward Adam Ashe will make his debut at No 8 for Scotland against South Africa in Port Elizabeth on Saturday.
Ashe, 20, is one of four changes to the side that defeated Argentina 21-19 in Cordoba last weekend and caps a remarkable whirlwind ascent which has seen him catapulted from a rugby scholarship for Lincoln University in New Zealand to the senior Scotland squad.
Henry Pyrgos starts instead of Grayson Hart at scrum-half, Tim Swinson replaces British and Irish Lion Jonny Gray at lock and Chris Fusaro coming in for Blair Cowan at openside flanker.
Coach Vern Cotter says he had no qualms about giving Ashe his debut against the team ranked second in the world, having handed six other players their first caps on a tour that also included a 24-6 win over the United States and a 19-17 defeat of Canada.
"He is a talented player and the reports of his form in New Zealand have been very positive," said Cotter.
"He has trained well with us and looked sharp. He is a specialist No 8 and this is a golden opportunity for him."
There is also a new-look bench from the Argentina game, with wing Dougie Fife the only replacement to retain his place.
It means that South African-born Glasgow Warriors loose-forward Tyrone Holmes could also earn his first cap against the country of his birth.
Scotland: Hogg, Maitland, De Luca, Horne, Seymour, Weir, Pyrgos; Dickinson, Ford, Cross, Swinson, Gilchrist (capt), Harley, Fusaro, Ashe.
Replacements: Bryce, Low, Murray, Gray, Holmes, Hart, Fife, Murchie
Watch the Springboks take on the Scots on Sky Sports HD 3 this Saturday, kick-off 1600