You can cross the platoon label off Dom Canzone’s hitting profile. The Mariners’ designated hitter has swung his way into a full-time, middle-of-the-lineup role, regardless of the handedness of the opposing pitcher. “He’s earned it,” club president Jerry Dipoto said. A 28-year-old left-handed hitter, Canzone was almost immediately tagged with a can’t-hit-lefties label after he arrived in ...