BUENOS AIRES - South Africa head coach Rassie Erasmus said on Sunday the injury sustained by captain Siya Kolisi in a 17-10 Test victory over Argentina in Buenos Aires "does not look too bad". A hamstring injury sidelined flanker Kolisi for Nations Championship victories over England, Scotland and Wales during July. "Siya injured his hamstring, the other hamstring, but it does not look too bad," said Erasmus before praising the 35-year-old loose forward. "I thought Siya was really dynamic with his carries and clean-outs," he said after a Test in which the Springboks had to withstand sustained late Pumas pressure. Were Kolisi to miss the All Blacks Test, Paul de Villiers would be the likely replacement after outstanding performances in the Nations Championship.