It is also disappointing that this has happened the day after the pre-match meeting I had with both teams, where the importance of respect for opponents was highlighted.
He was handed a level one charge for the send-off he gave David Warner in Australia's second innings, screaming in the opener's face after bowling him, though expletives were not heard. It was interesting that it was Smith who was involved in the exchange of shirt material with Rabada, which was [the incident] that got the suspension.
Then Rabada struck for the third time in the innings.
Proteas supporters had little sympathy and several turned up to St George's Park wearing Sonny Bill Williams masks in another attempt to upset Warner over his private life.
"There's a lot of grey areas‚ but the rules are rules".
Crowe said he in his judgement the contact with Smith had been inappropriate and deliberate. I didn't even feel contact in that moment because I was so pumped up. It's the same as with Lord's - I didn't try and appeal (the charge) because I knew I did it.
Before his punishment was confirmed on Monday, Rabada himself appeared to concede that he was likely out of the rest of the series.
"I was very motivated to prove that I can still play this game", said De Villiers, whose performance was described by his former captain Graeme Smith as "one of the great Test innings". "I've always loved playing".
"It was right up there with the best feeling ever", he said.
As far as the fast bowler is concerned, the second Test ought to be remembered for his 10-wicket haul, which included a fascinating spell where he took 6-54.
Nathan Lyon dismissed de Villiers for 28, reducing South Africa to 81-4, but the visitors didn't have enough runs to play with and the Proteas got home.
An 11th dismissal followed when Mitchell Starc edged through to the keeper, giving Rabada the second-best figures by a South African bowler in a Test against Australia. When asked what goes through his mind when he lets loose like that, Rabada could not quite pinpoint it, but put it down to passion.
"If I knew I did it deliberately I wouldn't have contested it", said Rabada. "There's a whole lot of emotion and pride". You don't want to roll over. Overall, however, Australia remain ever so slightly more likely to close out the win - they are 3/1 to claim a 2-1 series scoreline, and 11/4 for 3-1, compared to 5/1 and 8/1 for South Africa to secure the opposite result. "Just to be part of a successful Test team". "On the spot now, I would assume probably on the fourth Test", ESPNcricinfo quoted du Plessis, as saying. "I was very motivated to prove to everyone that I can still play the game".