The Los Angeles Dodgers are trying to create some breathing room atop the NL West, and giving the ball to Hyun-jin Ryu is usually enough to shut down the Arizona Diamondbacks. Ryu goes for another strong performance against the Diamondbacks as the Dodgers attempt to continue their dominance of the season series Saturday night. Los Angeles (79-62) leads the West by two games over second-place San Francisco, an advantage partially built by its mastery of Arizona (59-82). Ryu (14-6, 3.18 ERA) has won both of his starts against Arizona this year by scattering four hits in 12 scoreless innings while striking out 13.