UPDATE: Bernard Tomic has been fined $10,000 USD ($13,300 AUD) for telling a spectator at the US Open that he would put his balls in the spectator's mouth.
Australian tennis player Bernard Tomic has been picked up by an on-court microphone threatening to put his balls in a spectator's mouth.
The exchange occurred during Tomic's first round match at the US Open against world No. 72 Damir Dzumhur.
Tomic could be heard arguing with a spectator, telling him to "suck my balls" and saying, "I will put my balls in your mouth".
“I will give you some money to make you feel good," Tomic then told the spectator.
The World No. 19 was then questioned, but not reprimanded by the match umpire. Tomic said the spectator was "saying shit" to him.
Tomic lost the match three sets to one.