Preview #156: arizona diamondbacks vs. miami marlins. With the losses by everybody last night, the magic numbers drop to one for the Dbacks to clinch a postseason spot and homefield advantage. A victory for Arizona in the rubber game of this series will take care of both. Otherwise, we do need the Brewers AND Cardinals to lose today to get in that way, and the Rockies to lose to ensure the game is played at Chase Field. Both St. Louis and Milwakee contests are well under way, since they started at 1035 and 1110 am, Arizona time, against Pittsburgh ...