SAN JOSE, Calif. — Gotham FC goalkeeper Ann-Katrin Berger jokes that she’s getting old.

That’s why the 35-year-old said her body aches heading into Saturday’s championship match against the Washington Spirit.

Once Berger steps onto the pitch Saturday and the game begins, all the fatigue caused by the grueling season ceases to exist.

The aches and pains disappear, too.

Gotham FC goalkeeper Ann-Katrin Berger tends to put her teammates at ease thanks to her knack for spectacular saves. John Jones-Imagn Images

“Normally, [it] just switches off,” Berger told The Post. “There’s a readiness, and it’s like 100 percent. And I’m just telling myself there’s no tiredness, no complaints of anything.”

Berger is still playing like she’s in her prime and almost always delivers saves worthy of a hig

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