RENSHAW'S REMARKABLE TEST! Cummins goes berserk as Aussies close in - RSA vs Australia 1st Test, Day 4 Review

Courtney Walsh and Code Sports' Daniel Cherny review Day 4 of the first Test, as Matt Renshaw stars with the bat and ball, Pat Cummins unleashes a late blitz and Australia move within six wickets of victory over South Africa, with Steve Smith's head knock adding to the intrigue.

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