World number three Alexander Zverev faces an eight-week ban from tennis if he repeats the behaviour which led to his expulsion from the Mexican Open.
In February, the Olympic champion was fined $40,000 (£31,000) and forfeited all his prize money for striking the umpire's chair in Acapulco.
Zverev has now been found guilty of a 'major offence' after an ATP review.
The German 24-year-old will be banned if he commits another similar offence within 12 months of the incident.
Similar offences include unsportsmanlike behaviour and verbal or physical abuse of anyone at a tournament.