Andy Farrell names his Ireland side later for Saturday’s first test with South Africa in Pretoria.
Leinster’s Jamie Osborne has been tipped for a start at full-back.
The Springboks named their team on Tuesday, with 20 of their matchday 23 having been involved in last year’s World Cup final.
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Ireland will look to take another step towards a World Under-20 Championship semi-final today.
Willie Faloon’s charges play Georgia in Stellenbosch, with kick-off at 1pm Irish time.
The other game in the pool has a 6pm start, with Australia playing Italy.