The Chicago Cubs called up top first baseman prospect Matt “Mash” Mervis Thursday following a dreadful 1-6 road trip against the Miami Marlins and Washington Nationals. The Cubs are 2-0 since Mervis’ long-awaited arrival. Mervis endured a true breakout campaign with three of the Cubs’ minor league affiliates during the 2022 season. Mervis began his campaign by dominating 27 games …