After two full seasons with the Los Angeles Dodgers, Zack Greinke still has NL West opponents stumped. He'll look to continue both his mastery of the division and his strong start Saturday night against the visiting Colorado Rockies. He won in Sunday's 7-4 victory at Arizona, throwing seven scoreless innings to improve to 19-1 with a 1.87 ERA in 29 starts against NL West foes since joining the Dodgers in 2013. The right-hander is 4-1 with a 1.54 ERA in his last six meetings with Colorado, winning three straight.