Springbok flyhalf Handre Pollard will join the national team on Monday after being called into the squad to fill the vacancy created by hooker Malcolm Marx.
The Springboks fizzed and ground their way to a 76-0 victory over a brave but ultimately outclassed Romania in their second Rugby World Cup Pool B match in Bordeaux on Sunday.
Ireland captain Johnny Sexton and coach Andy Farrell are under no illusions as to the challenge that awaits them when they face the Springboks in their RWC Pool B clash next week.
The Springboks haven't changed their preparation for Sunday's opponents Romania, and do not see them as an opponent they can afford to take lightly.
The Springboks' thoughts were still with Malcolm Marx on Friday after his tournament-ending injury, which they described as not just a loss for South Africa but the whole Rugby World Cup.
The man of granite that is Marco van Staden is ready to take his place in the middle of the scrum, if that's what the Springboks need.