By BETH HARRIS
AP Sports Writer
LOS ANGELES (AP) — Mookie Betts and Corey Seager homered back-to-back in the first inning, Justin Turner and AJ Pollock did the same in the fourth, and the Los Angeles Dodgers completed a three-game sweep of the San Diego Padres with an 8-3 victory. The defending World Series champions remained two games behind NL West-leading San Francisco after the Giants beat Arizona 5-4 with a walk-off hit in the ninth inning. The Dodgers won their 12th in a row at home and are set to close out the regular season with three home games against NL Central-champion Milwaukee while the Giants will host San Diego.