Alex Call gets his walk-off moment - and the Nats get another series win

Alex Call's swing, on the first pitch of the ninth inning, delivered a 4-3 victory over the Chicago Cubs and another series win for Washington.(Manuel Balce Ceneta/AP Photo) Alex Call has always tried to visualize anything that could happen in a baseball game.Before facing a pitcher, he tracks their pitches on a virtual reality headset, then uses an iPitch Machine to mimic the velocities, shapes and spin rates he'd see in specific arsenals.

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