When the 2017 season began, most observers figured the San Francisco Giants would be battling for a postseason berth while the Milwaukee Brewers would be way back behind the defending World Series champion Chicago Cubs as they continue their complete rebuild. The surprising Brewers narrowly hold first place in the National League Central, while the Giants are trying to figure out how to climb out of a tie for last place in the NL West. Milwaukee right-hander Junior Guerra (1-0, 1.84 ERA) will oppose San Francisco right-hander Jeff Samardzija (1-7, 4.63 ERA).