South African captain Faf Du Plessis was fined for ball-tampering during the second test against Australia in Hobart, but was cleared to play by the International Cricket Council (ICC).
The ICC announced on Wednesday that it would review footage of the match that appeared to show du Plessis applying saliva to the ball with a lolly in his mouth.
The 32-year-old, the stand-in captain for the injured AB de Villiers has previously been in hot water for ball tampering.
In 2013, Du Plessis was fined 50 percent of his match fee for ball tampering in the second test against Pakistan.
He was caught on camera rubbing the ball against a zip on his pocket on the third day of the match in Dubai, leading umpires Ian Gould and Rod Tucker to penalise South Africa five runs and change the ball. Du Plessis did not contest the charge.
South Africa’s innings and 80-run win over Australia in Hobart sealed the three-match test series with a game in hand.