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WEST SACRAMENTO — The San Francisco Giants fell apart in the fifth inning and lost to the Oakland Athletics 5-2 on Friday night at Sutter Health Park, after right-hander Tyler Mahle served up an 87-mph cutter to Nick Kurtz, who took it 417 feet to left-center field as part of a five-run fifth inning that put the Giants behind to stay. Mahle had allowed singles to Lawrence Butler and Jeff McNeil earlier in the inning, remained in the game after the long homer and yielded additional hits including an RBI single to A's center fielder Henry Bolte, a Palo Alto High School alum who made his MLB debut earlier this week. The game drew a sellout crowd of 12,348. Giants left fielder Heliot Ramos exited after the fifth inning with right quadriceps tightness after appearing to hurt himself while sliding on a fifth-inning play; infielder Casey Schmitt replaced him, making his first career appearance in the outfield at any level. San Francisco got solo home runs from Luis Arraez and Harrison Bader — Arraez finished 4-for-5, homering in the fourth and adding a single and a double — but the club left nine runners on base and went 0-for-7 with runners in scoring position. Down 5-2 in the seventh, the Giants had runners at second and third with one out before A's reliever Jose Suarez struck out Matt Chapman and induced a Rafael Devers groundout to end the threat. Mahle had six strikeouts in his first four innings and has allowed nine homers in 46 2/3 innings this season. Catcher Daniel Susac returned to the lineup after missing 22 games with an elbow issue and threw out Bolte attempting to steal in the fourth.

Prepared by Emily Rhodes and reviewed by editorial team.