South Africa have conceded their sparse schedule may have left them underdone for the heavyweight clash with Australia, as they slide towards first Test defeat in Durban.
The Proteas have been sloppy with bat, ball and in the field at Kingsmead over the first four days, leaving them 4-102 in pursuit of 421 for victory.
This match is South Africa's first Test since a tour of India last October and November, with the Proteas playing no red-ball cricket at home last summer.
