#USTennis' @reillyopelka and @jared_donaldson spent the day with the next generation of greats at the #NetGeneration @bbtatlantaopen Kids Day. Get ready for the start of the #USOpenSeries, beginning Monday, 7.24 at 2PM ET on @espn 3 #kids #tennis #opelka #donaldson #tennislove #instatennis