John Isner suggests the big mistake Alexander Zverev made before Wimbledon which caused his shock defeat

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Alexander Zverev is one of many top seeded casualties from the men’s singles draw at Wimbledon so far.

Zverev was beaten by Arthur Rinderknech in his first round match at Wimbledon, and is one of four top 10 seeds to exit the tournament.

This includes Daniil Medvedev, who lost to Benjamin Bonzi, Lorenzo Musetti and Holger Rune.

While all of these results are notable, John Isner believes that Zverev’s defeat was caused by something in particular.

John Isner suggests Alexander Zverev made a big mistake before Wimbledon

Zverev reached the final in Stuttgart to begin his grass court season this year, before competing in Halle.

It was in Halle where Zverev lost to Medvedev, and the aforementioned Isner believes that the world number three has played too much coming into Wimbledon.

“I personally think that he has played way too much tennis going into this Wimbledon,” Isner said on the Nothing Major podcast.

“He played too much tennis going into the French Open then again he played two tournaments immediately, Stuttgart, Halle before Wimbledon. I think he is just mentally cooked.”

This was echoed by fellow former top 10 player Jack Sock, who noticed something very different about Zverev’s body language on court.

“I agree he has played an insane amount of tennis,” added Sock. “You can almost tell when he is playing now. He is usually calm and level headed out there but he almost looks kind of sad and defeated at times. He is not enjoying it maybe as much.”

What is next for Alexander Zverev?

Despite Isner and Sock’s claims about Zverev playing too much tennis, he is scheduled to return to the matchcourt in the coming weeks.

Zverev is scheduled to be the top seed at the clay court tournament in Gstaad, the ATP 250 event in Switzerland where Casper Ruud, Alexander Bublik and Matteo Berrettini have also entered.

After that tournament, Zverev will switch his attention to the North American hard court swing ahead of the US Open.

That will begin at the Canadian Open, where Zverev is a former champion, with the ATP Tour competing in Toronto this year.