Drotske was visiting family and local reports said he and Du Randt were targeted by four men.
That is what Tinus Drotské, brother of the former Springbok rugby player, told Naka's wife, Marzanne, after he was shot three times during a home invasion on Thursday night in Pretoria.
"Naka was shot and is now in critical condition in hospital".
Drotske, who represented the Boks in 26 tests and was a member of the 1995 World Cup winning squad, was at his brother's house in Kameeldrift when a group of five heavily armed robbers attacked their group, including former Bok teammate Os Du Randt.
The next moment we just heard these shots being fired and Os got up and also went outside and then they ran away. Drotske underwent surgery immediately upon arrival at the hospital and will require a further operation on an injured arm.More news: Apple purges over 700 apps from the App Store in China
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Police said Friday they were questioning two men but no arrests had been made.
Rugby World Cup victor Naka Drotske was shot three times after charging at armed robbers to force them out of his brother's house, police and a community safety official said.
Drotske, 47, won the Rugby Union World Cup with South Africa in 1995 and was with another former Springboks star, Os du Randt, when the incident occurred.
Overall, he won 26 caps for South Africa during a six-year worldwide career between 1993 and 1999.
After retiring from playing he coached Super Rugby side the Cheetahs, before quitting rugby in 2015 to pursue business interests.