Coco Gauff is playing the long game when it comes to perfection.

Firing her coach on the eve of the U.S. Open was a huge gamble for Gauff. But apparently not as risky as settling for the status quo, and her old broken serve.

“I’m looking at long-term. I hope I can get it all together — I’ll play either Monday or Tuesday — by then. If not, I have the rest of this year to work on it,” Gauff said Friday. “But I do know I needed to make a change — technical change — to it, and I don’t want to waste time continuing doing the wrong things.”

Gauff triumphed two years ago in Flushing as a teen phenom.

But last summer’s title defense was undone by 19 double-faults in a fourth-round loss to Emma Navarro, and coach Brad Gilbert was replaced by Matthew Daly.

But now — after this season’s WTA-wor

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