Mike Yastrzemski is having an excellent rookie year. In 257 plate appearances, he’s currently hitting .266/.320/.511, which is good for a 112 wRC+. He’s fourth on the team in homers, fourth in RBIs, he might set a Giants home run record, and he’s just been an all-around boost to a lineup that’s needed several boosts this season, especially when their Dick was too banged up to perform.
Yastrzemski, of course, was acquired near the end of Spring Training this year from the Orioles. In return, the Orioles got right-handed minor league starting pitcher Tyler Herb, because the Orioles have spent several years being desperate for pitching.