Marcus Semien is not in the Athletics' lineup Friday.
Marcus Semien pounded his 19th home run of the season in a loss to the Astros on Friday.
Athletics manager Bob Melvin acknowledged that Marcus Semien has been playing through a right shoulder injury.
Marcus Semien delivered a three-run homer and an RBI double against the Giants on Monday.
Marcus Semien went 1-for-4 with a three-run home run in Thursday's 5-4 win over the Angels.
Marcus Semien went 3-for-4 with a two-run triple and three total RBI in Tuesday's win over the Brewers.
Marcus Semien will bat second Monday versus the Rangers.
Marcus Semien socked a solo homer and drew a walk in Friday’s loss to the Astros.
Marcus Semien hit his 10th homer of the year Monday against the Rangers.
Marcus Semien went 2-for-3 with a solo homer Friday against the Rays.
Marcus Semien clobbered his eighth home run of the season on Saturday as the Athletics dispatched of the Orioles 8-4 in Baltimore.
Marcus Semien went 2-for-4 with a solo home run and two runs scored in Wednesday's loss to the Mariners.
Marcus Semien smacked a two-run homer in Tuesday's win over the Tigers.
Marcus Semien went 1-for-2 with a solo home run in Wednesday's loss to the Angels.