Matteo Berrettini practicing in the new U.S. Open pool

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Practicing in the new US open swimming pool 😂🥵💦🏊 📷 @matthew_reiter_tennis #newyork#fresco#🏌🏻‍♂️#enzo#bigteam#cafú

A post shared by Matteo Berrettini (@matberrettini) on Aug 19, 2019 at 7:25pm PDT

Then cooling off ..

And it looks like Stefanos Tsitsipas and Grigor Dimitrov were also going for a swim ...

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6.000 calories melted away... #DrippingWet 💦 #Training 🎚 #WontStop 😐

A post shared by Stefanos Tsitsipas (@stefanostsitsipas98) on Aug 19, 2019 at 1:30pm PDT