Rockies, Dodgers begin key NL West series

First place in the National League West has been changing hands in recent days and placement in the standings might only get more volatile when the Los Angeles Dodgers meet the Colorado Rockies for four games in the Mile High City. The Dodgers will head into the series that starts Thursday a half-game out of the top spot, with the Rockies a mere three games back. The Arizona Diamondbacks moved back on top in the division Wednesday.