MLB roundup: M's climb within 1 1/2 games of playoff spot

The Seattle Mariners continued their dominance of the visiting Oakland Athletics on Monday night, riding Mitch Haniger's pair of three-run home runs to a 13-4 trouncing of their American League West rivals in the opener of a three-game series.

Seattle pulled within 4 1/2 games of the first-placeHouston Astros in the AL West while moving within 1 1/2 games of Boston in the chase for the second AL wild card. The A's fell 3