O’s can’t sweep as bullpen falters in 7-3 loss to Mariners

SEATTLE — All the Mariners’ offense needed to get back on track was to face the middle of Baltimore’s bullpen.Seattle’s lineup is one of the majors’ worst this season despite the club’s standing atop the American League West. The Mariners entered with an MLB-worst .216 batting average while averaging more than 10 strikeouts per game.Their…