Coco Gauff called her dad out for swearing during a changeover in Auckland, but in Corey Gauff's defense, "damn" is not very offensive.

"You can't curse," Gauff said, with a smile.

"Sorry about that," her dad said into the mic.

Just before the damning moment, Corey Gauff embarrassed his daughter a little bit by bringing a ball person into their conversation.

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Gauff is still alive in the doubles draw where she and Caty McNally are into the semifinals. The American teen could still face Serena in the doubles final, as Serena and Caroline Wozniacki have been steamrolling the competition.

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Serena is into the singles quarterfinals after taking out Christina McHale on Thursday. Wozniacki is also into the quarterfinals.

WATCH: Gauff calls 
dad out for swearing
in Auckland

WATCH: Gauff calls dad out for swearing in Auckland

The 15-year-old was in the midst of a battle with Laura Siegemund, which she lost 5-7, 6-2, 6-3. Had Gauff won the round-of-16 match she would have faced Serena Williams.