Victorian Aaron Finch has been found guilty of ball tampering during his state's Sheffield Shield win over South Australia.
Finch was fined half of his match fee at a Cricket Australia code of behaviour commission on Monday in Adelaide.
Finch told the commissioner, Judge David Smith, he was "most likely responsible for the damage to the ball" in a Cricket Australia statement.
Umpires penalised the Bushrangers five runs and initially charged the entire Victorian team with ball tampering.
On Monday, the initial charge against the Victorian team was withdrawn.
A separate charge was laid against batsman Finch under Cricket Australia's code of behaviour relating to an individual changing the condition of the ball.
The umpires noted markings on the ball after the final delivery at Adelaide Oval on Saturday, day two of the Shield game.
SA was awarded five penalty runs on Sunday.
- AAP