SAN FRANCISCO — When Mike Yastrzemski steps into the batter’s box to face Dodgers ace Clayton Kershaw on Opening Night in Los Angeles, it won’t be the first time Yastrzemski will have seen the future Hall of Famer on the mound this summer.
Yastrzemski didn’t spend his quarantine working out with the Los Angeles left-hander, but he did spend time preparing for his at-bats against Kershaw and other Dodgers pitchers. The second-year Giants outfielder was one of a handful of players who used a virtua. . .