The A’s have won eight straight games, beating the Houston Astros 3-1 on Saturday.
Marcus Semien became the first Athletic to hit a walk-off and a leadoff home run in back-to-back games. Drawing a 3-2 count to lead off the first, Semien launched Astros left-hander Framber Valdez’s curveball offering into left field.
Semien’s first home run of the season would be the only run on the board for either team until Matt Chapman’s one-out high chopper scored Semien from third — Semien had singled, then r. . .