Zach Britton wasn’t sure he’d be in this spot this year

Zach Britton didn’t pitch the last time his team was in a wild-card game, when Baltimore manager Buck Showalter famously left him in the bullpen, using seven different pitchers, waiting for a lead against the Blue Jays that never came. “I don’t think that will be the case [Wednesday] night,’’ Britton said on the eve…