Estrada, Yastrzemski hit back-to-back homers to lead Giants past Pirates, 3-2

Yahoo! Sports – 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…