SEATTLE (AP) — Mark Teixeira hit his ninth career grand slam off Seattle ace Felix Hernandez in the fifth inning and Michael Pineda allowed two runs pitching into the seventh in the Yankees' 7-2 win over the Mariners on Monday night.

The anticipated matchup between two of the top right-handers in the American League met expectations for three innings before Hernandez (8-2) fell apart in stunning fashion.

The Yankees took advantage of five walks and a wild pitch that allowed a run to score as the AL wins leader lost his rhythm following a brief rain shower that dampened Safeco Field before the retractable roof could close.

With Hernandez struggling, Teixeira didn't miss his chance to blow the game open. With only one out in the fifth, Hernandez fell behind 2-0 and grooved a fastball to Teixeira, who hit his 15th homer of the season and sixth career long ball off Hernandez.

Seattle Mariners play New York Yankees at 7:05 tonight at Safeco

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