RWC19: Koch in Springboks 23 to face Italy
Vincent Koch has been named as a replacement for South Africa's match against Italy on Friday.
The Saracens prop featured in the Springboks' win over Namibia last time out - their first win of the tournament.
South Africa are grouped with New Zealand, Canada, Namibia and Italy.
Koch will earn his 17th international cap as South Africa look to edge closer to qualifying for the quarter-finals from Pool B.