The masks were likely to have been worn to taunt Australian batsman David Warner, whose wife reportedly had an encounter with Williams in 2007 before meeting Warner. "They said "let's take a photo with you guys", revealed Kazi.
Cricket South Africa (CSA) were forced into a public apology after it emerged that two of the organisation's high-ranking officials posed with fans wearing masks of Sonny Bill Williams during the second Test against Australia.
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.
While sports fans often engage in questionable behavior at stadiums, officials Eksteen, a former South Africa player, and Kazi are accused of condoning the taunting of Warner and his wife by South African supporters.
CSA though understood the seriousness of the matter and released an apology statement to Cricket Australia (CA) and David Warner over the same.
CSA President Chris Nenzani also weighed in on the matter: "On behalf of CSA I extend my honest apologies to the Board of Cricket Australia (CA), its officials, team management, players and their families".
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Alerted on social media that the masks were going to be brought to the game on Friday, the Australians wanted security measures taken.
"On behalf of CSA, I extend my honest apologies to the board of Cricket Australia (CA), its officials, team management, players and their families", the CSA said in a statement, "CSA does not associate itself with these actions and urges all Protea supporters from refraining from being involved in distasteful or unwelcome actions that may impact the image of the sport and its supporters".
CSA tried to "distance itself" from the behaviour of Eksteen and Kazi when it apologised to CA. She is also a model and celebrity TV star.
It didn't seem to throw Warner off too much, however, as he top-scored for Australia with 63 as the Aussies reached 243 all out on the first day of the second Test.
A ban could see Rabada miss the rest of the series, but he will contest the charge.