"For athletes that perform at the level of pro tennis players, there's a requirement to stay fit, stay focused and physically sharp...the practices that makes for a successful space flight." @nasa astronaut @astro_feustel is just 2️⃣ days from his journey on Expedition 55 to the @iss! Send him all your best with a 🎾🚀#TMinusNetGeneration #tennis #nasa #astronaut #internationalspacestation #instaspace #instatennis #drewfeustel #netgeneration