Rabada finished with bowling figures of 5-96 while the 21-year-old Lungi Ngidi, who was a surprise pick ahead of Morne Morkel, took 3-51 including bowling David Warner for 63.
Equally, Australia's on-field conduct has come under severe scrutiny over the years with players saying in the past they are willing to "head-butt the line", particularly during heated series such as the Ashes and clashes with India. The bowler already has five demerit points and three more would earn him two suspension points that would result in a two-test ban and rule him out for the rest of the four-match series.
South Africa and Australia have been having a go at each other on the field and off it as well ever since the four-match Test series began last week.
Nathan Lyon produced arguably one of the best off-breaks you'll see in worldwide cricket late on day two, dismissing South African wicketkeeper Quinton de Kock for nine as he began to build a risky partnership with AB de Villiers. "Both teams fought extremely hard", said Mitchell Marsh.
Actor Nawazuddin Siddiqui under police lens
The Police claimed that the actor failed to mark his presence whereas Nawaz has dismissed the idea of being summoned altogether. Eleven people, including India's first female detective, Rajani Pandit, have been apprehended in the case.
At Kingsmead, Rabada gave David Warner a send-off but it did not appear to include swearing; he passed his arm over his mouth as he completed his sentence. Later, Khawaja joined with Warner but within next six runs he was gone too.
Australian wicketkeeper Tim Paine has stressed the tourists will continue sledging for "as long as we play" and claimed that South Africa's version of the events that unfolded in Durban are "completely false".
He had Smith and Shaun Marsh out lbw, with both failing with reviews, and Mitchell Marsh was caught behind by de Kock attempting an expansive drive at an inopportune moment just before the tea break.
He was visibly disappointed when he edged Pat Cummins on to his stumps for Australia's only breakthrough of the morning. There is no doubt about the fact that the big players didn't perform in the first Test.
He was originally scheduled to hear his fate after play on day two, but one of the standing umpires from Friday, New Zealander Chris Gaffaney, was not fit to sit in on the process due to health issues. Match referee Jeff Crowe also called the captains and managers to a meeting before the second test in an attempt to calm the situation.