Christian Walker blasts two homers, including game-winner in win over Rockies
Christian Walker's second home run of the game broke a tie in the eighth inning and gave the host Houston Astros a 4-3 win over the Colorado Rockies oChristian Walker's second home run of the game broke a tie in the eighth inning and gave the host Houston Astros a 4-3 win over the Colorado Rockies o