India's Yuvraj Singh hailed Gary Kirsten's influence after helping take the South African coach one step nearer to a fairytale finish at the World Cup.

"Since Gary started, the team unity, the way we practice and believe in each other, it's like a family," explained Yuvraj, after his unbeaten 57 saw India to a five-wicket win over Australia that set-up a semi-final clash against old rivals Pakistan.