Rockies infield prospect Nolan Arenado clubbed his second home run of the spring to provide the only offense in Colorado's 6-3 loss to Oakland in Cactus League play Saturday. Arenado, who earned his second straight start at third base, went deep off Athletics reliever Andrew Werner for a three-run shot in the sixth inning. He is now hitting .364 after five games this spring. "I think it's safe to say he's made a good impression," Colorado manager Walt Weiss told MLB.com. "There's a ways to go this spring, but I think he showed up ready to go."