(Seattle, WA) -- The Seattle Mariners are off to a good start in their series with Houston, defeating the Astros, 3-1. Michael Saunders drove in two runs with an infield single in the seventh inning to make the difference. Roenis Elias [[ ro-ENN-is eh-LEE-as }] and the Mariner bullpen combined to shut out Houston after a lead-off home run in the first. The two teams will play again tonight at Safeco Field.