Why Ravi Shastri, Virat Kohli uneasy ahead of Johannesburg Test

South Africa have never beaten the Indian Cricket Team in a Test at Wanderers Stadium in Johannesburg. The Proteas, 2-0 ahead against Virat Kohli's team, aim to sweep the series. The third Test starts on january 24. (Video: Somshuvra Laha; Edit: Anik Biswas)