SAN FRANCISCO (AP) — Thairo Estrada and Mike Yastrzemski hit back-to-back home runs in the third inning, and rookie right-hander Keaton Winn had another strong start to lead the San Francisco Giants to a 3-2 victory over the Pittsburgh Pirates on Sunday.

Rookie shortstop Tyler Fitzgerald added three hits for the Giants, who took two of three from the Pirates and finished their longest homestand of the season 6-4. Pittsburgh lost for the 10th time in its past 13 games.

Winn (3-3) held the Pirates to one run over six innings, his line over the past three starts, all victories. Winn walked one, struck out five. He also hit Edward Olivares to start the fifth inning, leading to a run on Rowdy Tellez’s RBI double.

Erik Miller and Ryan Walker each pitched a scoreless inning in relief of Winn. Closer Camilo Doval allowed a ninth-inning run, but retired Joey Bart on a groundball with the potential tying and go-ahead runs on base to complete his fifth save.