Duane Vermeulen has joined the South African squad after a faster than expected recovery from an injury as they prepare for the crucial Test against the British and Irish Lions.
Vermeulen had an ankle surgery in June and was slated to miss the entire series.
“It will be great to have him with us,” said Springboks coach Jacques Nienaber.
His recovery is similar to that of Lions Captain Alun Wyn Joneswho joined the squad just 18 days after his shoulder dislocation.
Nienaber added that the 2019 world champions “will have a medical check-up as soon as possible” as South Africa prepares for the series decision in Cape Town on Saturday.
“We will never risk a player who is not 100% fit, but he adds experience to the squad,” he said.
South Africa will also learn on Monday the extent of the shoulder injury Pieter-Steph du Toit sustained in Saturday’s second test.
Flanker Du Toit was injured after a late tackle from Lions winger Duhan van der Merwe and was in significant pain before leaving the field in the first half.
South Africa defeated the Lions 27-9 in a fiery encounter to level the three test series and to make a decision the next weekend.