Alex Carey's gloves and Steve Smith's hands have put Australia back on track for a day-five victory over South Africa, with two crucial catches before lunch in Durban.
After the Proteas cast aside any hope of chasing down 421 and got through the first 110 minutes of Tuesday without loss, the hosts slipped to 6-166 at lunch.
Carey first did superbly well to remove Wiaan Mulder (29) down legside off Josh Hazlewood, diving low to his right to end a long resistance between he and Aiden Markram.
