Kagiso Rabada lit up an overcast day one in Port Elizabeth with a brilliant five-wicket haul but the fast bowler could find himself in hot water after a run-in with Australia captain Steve Smith.
Given that Rabada took 11 wickets in the second Test and is an instrumental part of the Test team, Cricket South Africa are seeking legal advice over whether they should lodge an appeal.
South Africa lost four wickets before Theunis de Bruyn hit the winning runs.
Kagiso Rabada has been banned for the last two Tests of SA's series against Australia‚ the International Cricket Council (ICC) has confirmed.
Rabada, 22, already had five demerit points on his disciplinary record and earned three more for "inappropriate and deliberate physical contact with a player" following his clash with Smith.
Rabada then accepted a second charge relating to a send-off he gave David Warner on day three, which resulted in a further 15 per cent fine from his match fee and an additional demerit point. If they let Australia's lower order off the hook, South Africa could have been faced with a tricky chase of 200-plus. Because for me they're not.
Marsh's sanction? Twenty percent of his match fee, which is a bit like saying someone else might just have to pay for one of his restaurant steaks with black pepper sauce and chips in the hiatus between Test matches.
The ICC said he had "made contact with Steve Smith with his shoulder" after dismissing the Australian captain on Friday.
"I honestly still think KG will get better".
"Honestly, I didn't even feel the contact in that moment because I was just so pumped up", Rabada said.
I'm in the camp of the at least partially neutral Kevin Pietersen: "It's Test cricket".
Sharing his view on the matter, Du Plessis was quoted by foxsports.com.au as saying: "For me, the way KG plays the game, he is a competitive fast bowler".
"He's got to be smarter and he knows that", South Africa's de Villiers said of Rabada.
As a sign of his pending greatness, Rabada has four 10-wicket hauls to his name from just 28 matches.
And, with the series moving to Cape Town on March 22, where there hasn't been significant rainfall for three years, it's hard to imagine the heavens intervening either.
"The match referee said there are bigger things to play for here, that's why he didn't want to ban Davey Warner", he said.
"If I do get banned I will have to see it as a big learning curve and not repeat the same mistake because I've repeated the same mistake in the eyes of the umpires. I just like to bowl wherever the team requires me to and set my own aspirations aside".
It is all so confusing, and divisive, and South Africans may well have some justification for arguing that the Proteas have copped the rough end of the censuring system - ironically against the team in the world with the strongest reputation by far, and for decades, for often incendiary and crude sledging.
Rabada, who kept his aggression under control on Monday - although it's likely too late for that - also dismissed Pat Cummins and Mitchell Starc as the Australians folded in less than 10 overs of the fourth day.