The Mariners suffered a brutal loss in the opening game of the American League Division Series. Seattle fell 8-7 to the Astros after Yordan Alvarez hit a three-run walk-off home run off Robbie Ray. The Mariners had held a 7-3 lead in the seventh inning, but weren't able to close it out. Ray was charged with the loss after allowing one run without recording an out. Game Two of the series is scheduled for tomorrow afternoon. Framber Valdez gets the start for Houston against Seattle's Luis Castillo.