LOS ANGELES—Antonio Senzatela pitched seven sparkling innings, C.J. Cron slugged a three-run homer and the Colorado Rockies beat the Los Angeles Dodgers 5-0 on Sunday, taking two of three from the defending World Series champions. Senzatela (3-9) cooled off the Dodgers, winners of 17 of 20, by allowing two hits in just their fourth shutout loss of the season. They missed an opportunity to gain ground on NL West-leading San Francisco, which lost 9-0 to the East-leading Atlanta Braves, who come to Los Angeles on Monday. The Giants lead the Dodgers by 2½ games. Senzatela struck out five and walked one on 90 pitches. The Dodgers finished with three hits. Senzatela had a perfect game through four innings. Corey Seager finally broke through with a leadoff single in the fifth. He moved to third on a single by Cody Bellinger, putting runners at the corners, but Austin Barnes grounded into …