Forehand topspin and Backhand topspin against heavy backspin and no spin):Robot plays heavy long backspin to Forehand, Jhon Forehand topspin to Forehand, Robot plays little backspin to Forehand, Jhon plays Forehand topspin to Forehand, robot plays heavy long backspin to Backhand, Jhon Backhand topspin to Backhand, Robot plays little backspin to Backhand and Jhon plays […]

