Image: Phil WalterSource: Getty ImagesSiya Kolisi says being forced to watch the Springboks from the sidelines was frustrating as he prepares to make his long-awaited return against Argentina on Saturday, 8 August. Siya Kolisi ready to make his mark againAccording to the Springboks website, Kolisi said the lay-off had tested his patience, although he was encouraged by the way the squad maintained its standards in his absence. "It's been tough watching from the sideline, but there's a couple of us getting an opportunity now," Kolisi said. Siya Kolisi says watching the Springboks from the sidelines was one of the hardest parts of his injury lay-off. Rassie Erasmus explains Siya Kolisi game plan against ArgentinaBriefly News also reported that Springboks coach Rassie Erasmus does not expect Siya Kolisi and Eben Etzebeth to play the full 80 minutes against Argentina despite their long-awaited returns from injury.