Booing Faf went too far: CA chief

Fans went too far by booing South African captain Faf du Plessis' century, Cricket Australia chief executive James Sutherland says.

Du Plessis was jeered by the Adelaide Oval crowd throughout his ton against Australia in the third Test on Thursday, and particularly when he reached the milestone.

The Proteas' skipper said he expected some hostility after being found guilty by the International Cricket Council of ball tampering.

But he was disappointed the booing continued when he scored his century - and Sutherland agreed.

"It's a little bit of theatrics ... he batted beautifully and I don't think he deserved any boos after a great hundred like that," Sutherland told ABC radio on Friday.

"That is sport and maybe just a little bit of fun that people in the crowd are having.

"But perhaps that fun just went a little bit too far at the end."

Du Plessis will appeal his ball-tampering verdict, which resulted in a fine of his entire match fee from the second Test and three demerit points.

"I was expecting a little bit of hostility but not to that extent," du Plessis told reporters after play on Thursday night.

"When I came out, I was obviously quite aware of it. As the innings went on, it disappeared a bit.

"But to be really honest with you guys, when I got to 100, I wasn't expecting to still get booed. So that was pretty disappointing."