Tennis fans may have found the sport's next "bad boy," but an R-rated on-court interview may have that outlaw's wallet feeling a little lighter.

Following a win at the HSBC Championships on Monday, French tennis player Corentin Moutet was interviewed at center court and unleashed a flurry of F-bombs into the reporter's microphone.

WARNING: VIDEO CONTAINS EXPLICIT LANGUAGE

It was obviously meant as a joke, but several fans and officials didn't treat it as a laughing matter, including the ATP.

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Corentin Moutet reacting during a tennis match against Novak Djokovic at Roland Garros Stadium.

Corentin Moutet of France reacts to a point during his match against Novak Djokovic of Serbia on day five at Roland Garros Stadium. (Susan Mullane-Imagn Images)

In an official statement sent to OutKick Friday morning, the ATP communications office revealed that Moutet is being fined $40,000 for his profane outburst on Monday.

"Following the use of profane language by Corentin Moutet during his post-match interview after his first-round match at the HSBC Championships at The Queen’s Club in London this week, the player has received a fine of $40,000 for unsportsmanlike conduct," ATP officials said.

"Moutet has confirmed that he will appeal the fine in accordance with ATP rules. The appeal will be reviewed by the ATP Tour Compliance Committee. No further comment will be made while the appeal process is ongoing."

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Corentin Moutet returns a shot against Mackenzie McDonald during a tennis match at the Cincinnati Open.

Corentin Moutet returns a shot against Mackenzie McDonald during the Cincinnati Open at the Lindner Family Tennis Center on Aug. 7, 2025. (Aaron Doster/Imagn Images)

It looks like Moutet will be fighting tooth and nail to avoid any sort of punitive action, and who could blame him?

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Moutet would have to reach the quarterfinals of the tournament to come out in the black, and unfortunately, his run at the Queen's Club in London came to an end on Thursday in a straight-sets loss to Spaniard Alejandro Davidovich Fokina.

For his efforts, Moutet will head home with roughly $23,000 after his first-round win, but the fine alone will negate any of that.

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Novak Djokovic holding a smashed tennis racket during a match at Wimbledon.

Novak Djokovic of Serbia smashes his racket during the men's singles final against Carlos Alcaraz of Spain at The Championships Wimbledon 2023 in London, England, on July 16, 2023. (Julian Finney/Getty Images)

Talk about an expensive mistake!

I'm not sure if Moutet will tone down his bad-boy image, but I can guarantee you he will swallow those F-bombs the next time there is a microphone in his face.

His checking account will thank him.