Burnell loses out as Leslie returns for Scotland
Jim Telfer's side to play South Africa on Sunday shows 4 changes from the team that beat Romania at Murrayfield last month.
Fit again Gregor Townsend returns, as does centre John Leslie, who will partner Alan Tait, now fully recovered from an ankle injury.
Sunday's game will be the first time since the win over France in April that the Townsend, Leslie, Tait combination has played together in the midfield.
Gordon Simpson gets the nod ahead of Stuart Reid at No 8 as Telfer generally goes for his most experienced side in the pool's crunch match.
However veteran prop Paul Burnell has lost his place to George Graham, who filled in at tight-head during Scotland's warm-up games while Burnell was nursing minor injuries.
It's a big risk to throw someone as small as Graham - who is not even a specialist tight-head - into the fray against the 20 stone Os du Randt. Scotland will be hoping instead the mobile Graham can run the 'Boks front row off their feet. And for Burnell, there is not even a sentimental slot on the bench to give him the opportunity to come on for his 50th cap.
Scotland side: Metcalfe (Glasgow Caledonians); Murray (Edinburgh Reivers), Tait (Edinburgh Reivers), J Leslie (Sanix), Logan (Wasps); Townsend (Brive), Armstrong (Newcastle, capt); Smith (Glasgow Caledonians), Bulloch (Glasgow Caledonians), Graham (Newcastle), Murray (Saracens), Grimes (Newcastle), M Leslie (Edinburgh Reivers), Pountney (Northampton), Simpson (Glasgow Caledonians).
Replacements: Mayer (Bristol), Redpath (Narbonne), Hodge (Edinburgh Reivers), Hilton (Glasgow Caledonians), Russell (Edinburgh Reivers), Weir (Newcastle), Walton (Newcastle).