The Dodgers would never label this season a youth movement. But it has become one - luckily for them.Rookie shortstop Corey Seager hit three home runs and combined with Trayce Thompson to produce all of the Dodgers offense in a 4-2 victory over the Atlanta Braves Friday night.Seager is the first Dodgers rookie to hit three home runs in a game since Don Demeter did it at the Coliseum on April 21, 1959.