LOS ANGELES >> The last time the Dodgers lost ground in the National League West before Saturday, Hyun-Jin Ryu was healthy and neither major political party had nominated a presidential candidate.That was on July 7, but a lot can happen in 24 days. It just so happened that the Dodgers had never lost on a day the San Francisco Giants won until the Arizona Diamondbacks beat the Dodgers 4-2 on Saturday.