Curwin Bosch returns to flyhalf for the Junior Boks' third and final pool match against Argentina at the U20 Championship on Thursday.
Bosch replaces Manie Libbok at flyhalf in one of three personnel changes, with the latter switching to fullback in place of Jeanluc Cilliers, who moves to the bench.
Up front, Ruben van Heerden and Hendre Stassen will form a new lock pairing.
Van Heerden, who missed the last clash against Georgia after taking a knock against France, replaces Reinhard Nothnagel, while Stassen takes over from Salmaan Moerat.
'We looked at the opposition, how fresh the players are, and their availability, and we feel that this is the best team for the Argentina clash,' coach Chean Roux commented.
'We are fortunate that all the players can play at any time and they are ready and willing to produce the goods, so our focus was not necessarily on continuity, but rather on winning the match.'