Siya Kolisi suffers hamstring injury in huge blow to South Africa ahead of New Zealand series

South Africa captain Siya Kolisi suffered a hamstring injury during the first half of the Springboks' narrow victory over Argentina. The injury forced him off the field and raises serious doubts about his availability for the upcoming series against New Zealand. The setback is a significant blow to South Africa given Kolisi's importance as both a player and leader of the squad.