One of the great mysteries and nagging worries for the Dodgers all spring has been this: What will playing their first two games 7,500 miles from home do to the rest of their season?It may not be a logistical nightmare, but it's certainly a challenge: After playing their final Cactus League game Sunday, the Dodgers catch a midnight charter for Sydney, Australia.They have a day to adjust to the time zone (16 hours ahead of PDT), a workout Wednesday, an exhibition game Thursday and real games against the Arizona Diamondbacks Saturday night and Sunday afternoon.