The presence of the Williams' masks are made all the worse considering Candice and Warners' two children are believed to be in attendance at the Test match.
Warner's hand became the latest point of discussion in debate over reverse-swing - and methods used to create it by scuffing one side of the ball - on day two at St George's Park.
Two South African cricket officials have been snapped posing with fans wearing masks to taunt Australian opener David Warner as the battle between the two countries heats up.
In an effort to rile Warner, some fans wore masks of rugby player Sonny Bill Williams, who had a well-known drunken encounter with Warner's wife Candice in the bathroom of a Sydney pub in 2007.
Clive Eksteen, a former left-arm spinner and CSA's head of commercial, and Altaaf Kazi, CSA's head of media and communication, are the men in question.
"Initially security wouldn't let them in", he told Fairfax. The masks have since been banned again.
Off-field drama aside, Warner put in a solid first-innings display notching up 63 as Australia were bowled out for 243 on the first day of the second Test.
Australia celebrate the wicket of Kagiso Rabada
The option is open for CA to call on the ICC to lay a charge, as its code of conduct covers the use of "language or gesture (s) that is seriously obscene, seriously offensive or of a seriously insulting nature" to players during an global match. Interestingly, Warner was fined 15 percent of his match fee for accusing AB de Villiers of ball tampering back in 2014 at the same venue.
Cricket writer and commentator Gideon Haigh has implored CA to take such action.
CSA said Eksteen and Kazi were now subject to "internal processes".
After an ugly feud with South African keeper-bat Quinton de Kock during the first Test in Durban last week, Warner has reason to be aggrieved during the ongoing second Test too.
"CSA has taken immediate precautionary steps against the officials allegedly involved in this incident", the statement read.
A remark from de Kock about Warner's wife ignited a fit of rage from the Australia vice-captain, who later described the comment as "vile and disgusting". He was accused of bringing disrepute to the game and even he accepted all the charges.