Du Plessis was charged on Friday with ball-tampering in the second test in Hobart after footage emerged appearing to show the Proteas skipper applying saliva to the ball with a lolly in his mouth.
Du Plessis has pleaded not guilty to the charge.
If proven guilty, Du Plessis could be handed a maximum fine of 100 percent match fee, two suspension points and four demerit points. Two suspension points equates to a ban of one test match.
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(Reporting by Ian Ransom; Editing by Peter Rutherford)
