Just weeks before THIS performance in the U.S. Open final, Alex Crum defeated World No. 1 Men’s Singles Player, Federico Staksrud, and something tells us he’s just getting started 😎 . . . . . . . 🎥: officialapptour . . . . #app #apphighlights #pickleball #pickleballaddict #pickleballislife #pickleball #singles #upset