Severino and Sanchez awful as Yankees’ wild-card lead shrinks

OAKLAND, Calif. — P.U. That nose-choking smell coming out of the Oakland Coliseum on Wednesday night didn’t travel through the dilapidated pipes of a ballpark begging for the wrecking ball and leak into the brisk air. No, the stench that suffocated the East Bay oozed out of the Yankees’ gloves, bats and arms. After an…