Elsa Jacquemot Shocks Kostyuk in Historic Australian Open Upset! (2026)

Get ready for a thrilling tennis tale that will leave you on the edge of your seat! The Australian Open witnessed an epic upset on Sunday, and it's a story that deserves to be told.

French tennis star Elsa Jacquemot, ranked 58th, pulled off an incredible comeback against the 20th seed, Marta Kostyuk, in a match that will go down in history. The scoreline, 6-7(4), 7-6(4), 7-6[7], not only marked Jacquemot's first career win against a Top 20 player but also became the first triple-tiebreak match at the Australian Open in the Open Era. Talk about making a statement!

But here's where it gets controversial... Kostyuk, the Ukrainian powerhouse, had been on a roll, with three Top 10 wins in the first week of 2026. Her strength training seemed to be paying dividends, and she had her eyes set on a Top 10 finish. However, against Jacquemot, her fluidity and consistency took a hit. Despite firing 67 winners, Kostyuk's unforced errors (68) proved costly.

Jacquemot, the 2020 Roland Garros junior champion, showcased a brilliant blend of defense and aggression. She lured Kostyuk into over-pressing and then struck with well-timed ferocity. Two crucial forehand returns denied Kostyuk the match at 5-3 in the second set, and Jacquemot's service winner kept her hopes alive.

And this is the part most people miss: Kostyuk, serving for the decider at 6-5, suffered an ankle injury, which required a medical timeout. Yet, she fought back to force a tiebreak. But it was Jacquemot's time to shine again, as she took a commanding 5-1 lead. Kostyuk fought back to level at 7-7, but Jacquemot's powerful forehands sealed the deal, winning her the match.

This historic match joins an elite list of only five triple-tiebreak Grand Slam matches in the Open Era. It's a scoreline that the Australian Open has only seen since 2019, making it a relatively new phenomenon in tennis history.

Jacquemot's victory sets up an intriguing next round against former No. 20, Yulia Putintseva. Putintseva, known for her dynamic celebrations, defeated Beatriz Haddad Maia in a thrilling match, showcasing her connection with the crowd. The Kazakhstani's celebration, a hip-shaking shimmy followed by a dramatic bow, might just be the celebration of the tournament, if not the season!

Unfortunately, another seed, Marketa Vondrousova, had to withdraw due to ongoing shoulder issues. Vondrousova, the former Wimbledon champion, underwent shoulder surgery in 2024, and her recent struggles have forced her to prioritize her health.

"I'm truly sorry to withdraw from the Australian Open," Vondrousova said. "It's a difficult decision, but my health comes first. Thank you for your understanding and support."

Lucky loser Taylor Townsend stepped in but fell to fellow American Hailey Baptiste in a tight three-set match.

So, what do you think? Is Jacquemot's upset a sign of things to come? Will Putintseva's celebration be the benchmark for the rest of the tournament? And what about Vondrousova's withdrawal - a wise decision or a tough call? Let's discuss in the comments and share our thoughts on these tennis tales!

Elsa Jacquemot Shocks Kostyuk in Historic Australian Open Upset! (2026)
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