Lucas Giolito, Max Fried and Jack Flaherty were teammates nine years ago at Harvard-Westlake, a prestigious prep school in Los Angeles. On Thursday, all three will be opening day starting pitchers in the major leagues. And they didn’t even win a California state title the year they all played together. Giolito will throw the season’s first pitch for the Chicago White Sox, Flaherty for the St. Louis Cardinals and Fried for the Atlanta Braves.