Jorge De La Rosa threw six solid innings with a healing cut on his middle finger, Michael McKenry homered and the Colorado Rockies beat the Los Angeles Dodgers 6-3 in the first game of a doubleheader Tuesday. De La Rosa (2-2) had his start pushed back twice because of a cut he got from the seams on a baseball. The lefty allowed three runs and struck out six for his 71st win with the Rockies, one shy of matching Aaron Cook's team record.