Naka Drotske, a member of South Africa's 1995 Rugby World Cup winning squad, is in critical condition in hospital after being shot during a robbery in Pretoria.
Former Springboks team-mate Os du Randt was with Drotske at the time of the incident, but is said to have been unharmed.
Drotske was visiting family and local reports said he and Du Randt were targeted by four men.
South African Rugby tweeted a statement, which read: "Our thoughts are with former Springboks Naka Drotske and Os du Randt and their families, who were the victims of a robbery near Pretoria last night.
"Naka was shot and is currently in critical condition in hospital. We wish him a speedy recovery."
Drotske made 26 appearances for the Springboks between 1993 and 1999, and most recently coached the Cheetahs.
His former club London Irish also offered their best wishes, posting on Twitter: "Our thoughts are with former London Irish player Naka Drotske after this shocking news.
"We wish him a speedy recovery."
South Africa's 1995 World Cup win on home soil was the first major sporting event to have taken place in the country following the ending of apartheid.