It's an encouraging sign for Castro, who had some struggles. Cubs manager Rick Renteria said the shortstop was trying to generate power and drive the ball, and he wasn't concentrating on hitting the ball to center or right. Castro batted .296 in June, but followed that with a .221 July.
The key, Renteria said, is minimizing the peaks and valleys.
Carrie Muskat is a reporter for MLB.com. She writes a blog, Muskat Ramblings, and you can follow her on Twitter @CarrieMuskat. This story was not subject to the approval of Major League Baseball or its clubs.