Even for the best in the game, mastering the serve can be a real challenge. Just ask Aryna Sabalenka and Coco Gauff.

Long before she became one of the most dominant servers on tour, Sabalenka had her own battles with consistency, often piling up double faults in double figures.

Now it’s Gauff dealing with similar problems. Her 23 double faults against Danielle Collins at the Canadian Open made that clear.

But back at the 1999 Australian Open, someone went beyond even those numbers, setting a record for double faults in a single match that still stands today.

Amazingly, despite all those errors, they still came away with the win. The world record for most double faults served in a professional tennis match belonged to Germany’s Andrea Petkovic who hit 23 against Anna Chakvetadze at the

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