By Daniel Chavkin Due to substitutions, Atlanta, Toronto and L.A. each have another All Star. As certain MLB stars decline to participate in the All-Star game next week, other players are being added as substitutions ahead of the event. First, José Altuve, who was named the starter at second base for the American League, will not participate. That means Guardians second baseman Andrés Giménez will now start at the position, and Blue Jays second baseman Santiago Espinal will replace Altuve on the roster. Espinal is in the middle of a solid season for Toronto, hitting .271 with six home runs and…