Buster Posey homered in the first inning and scored the go-ahead run on an error in the third, and the San Francisco Giants beat the San Diego Padres 6-1 for their ninth straight victory a day after becoming the first team in the big leagues to clinch a playoff berth.

San Francisco Giants' Mike Yastrzemski watches his game-ending solo home run against the San Diego Padres during the ninth inning of a baseball game in San Francisco, Wednesday, July 29, 2020. (AP Photo/Tony Avelar)SAN FRANCISCO Mike Yastrzemski homered twice, the second a towering solo shot into McCovey Cove in the ninth inning, lifting the San Francisco Giants past the San Diego Padres 7-6 on Wednesday night. Our players have actually talked about it this team is full of fighters, San Francisco manager Gabe Kapler said. After Tyler Rogers (1-1) worked the ninth, Yastrzemski homered off Matt Strahm (0-1) in the bottom of the inning to give San Francisco the walkoff victory. RHP Kevin Gausman (0-0, 4.50) will make his first start for San Francisco.