Inside Sport newsletter: Get an expert guide to the biggest moments shaping the world of sport Get our free Inside Sport newsletter Get our free Inside Sport newsletter Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy noticeSiya Kolisi has emerged as a major doubt for South Africa rugby’s series against New Zealand rugby after suffering a hamstring injury. open image in gallery Siya Kolisi suffered an injury against Argentina ( Getty )Kolisi now faces scans on a possible recurrence of the injury with just two weeks until South Africa play the first of four Tests against the All Blacks. “I hurt my hamstring again, unfortunately,” Kolisi said to the host broadcaster in Argentina. Marco van Staden replaced Kolisi after his injury and is his likely replacement on the openside flank if the Springboks skipper misses part or all of the All Blacks series.