Alvarez's walk-off homer caps Astros comeback against Mariners in Game 1 of ALDS

Yordan Alvarez hit a game-ending, three-run homer with two outs in the ninth inning off Robbie Ray, wrecking Seattle's strategy of using a Cy Young Award winner in a rare relief role and vaulting the Houston Astros over the Mariners 8-7 Tuesday in their playoff opener.