Happy birthday! John Isner turns 40 today

The iconic and legendary tennis player turns 40 on Saturday, Apr. 26, 2025.

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John Isner is celebrating his 40th birthday today. As a number of online tributes attest, he is one of the most acclaimed tennis players of his generation.

Popular tennis player John Isner has always liked to keep a bit of himself hidden from view. At 40th birthday, he remains a man of many facets.

Isner, a cultural icon

Born John Robert Isner in Greensboro on April 26, 1985, his career spans an arc over many different eras and tastes in American history. Isner's not just a great tennis player, he's an inspiration, an icon and a successful business man. At this point in his career, there seems to be little John hasn't done.

And we've got a feeling the next 12 months are going to be even bigger and better for John Isner as he promises more to come. After all, he's only 40.

Happy Birthday, John, you're the best!

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