Tomorrow, nasa astronaut astro_feustel will blastoff to the Intl. Space_station where he will attempt to play tennis! Watch as USOpen finalist KAndersonATP, FTiafoe, JohnIsner & SJohnson_89 wish Drew good luck. Learn More: ms.spr.ly/AJ-Drew-Feustel-Tennis-In-Space-QA #TminusNetGeneration