Sonny Gray's struggles continued Friday night in Oakland as he allowed at least one run in four straight innings in the A's 7-3 loss to the Pirates.
Gray dropped to 3-7 on the season, allowing seven runs in six innings at The Coliseum. His command continued to be an issue as he tossed two more wild pitches.
Pirates center fielder Andrew McCutchen tied the game at two runs apiece in the fourth inning on Gray's 13th wild pitch of the year.
A's shortstop Marcus Semien continued his power display. Semien smacked his 17th home run of the year, a two-run shot off Pirates starter Jeff Locke. Oakland's offense went 0-for-6 with runners in scoring position.
Liam Hendriks and Andrew Triggs relieved Gray for three innings of shutout ball.
With the loss, the A's fell to 35-45 on the season after taking three of four in the Bay Bridge Series.