Springbok coach Rassie Erasmus added Stormers No. 8 Evan Roos to his squad for the matches against the Barbarians and Castle Lager Incoming Series, increasing the size of his group to 55 players.
All Black Shannon Frizell and Ireland centurion Cian Healy have been confirmed as the latest names to join up with the Barbarians to face the Springboks in June.
The Springboks will defend the Qatar Airways Cup when they take on the Barbarians in a historic clash on Saturday, 28 June at Cape Town's DHL Stadium.
Sam Cane, Peter O'Mahony and Conor Murray have confirmed they will line up against the Springboks for the Barbarians match in Cape Town next month.
The Barbarians will make their first-ever appearance on South African soil when they face the Springboks in Cape Town on Saturday, 28 June.
Wales stalwarts Alun Wyn Jones, Justin Tipuric and Leigh Halfpenny enjoyed a fantastic send-off from international rugby as Wales beat the Barbarians 49-26 in Cardiff on Saturday.