LOS ANGELES — Buster Posey has taken his first major swing as president of baseball operations by trading for three-time All-Star third baseman and designated hitter Rafael Devers from the Boston Red Sox in an absolutely stunning deal, according to multiple reports.

In one of the most stunning midseason trades in recent MLB history, the San Francisco Giants have acquired All-Star slugger Rafael Devers from the Boston Red Sox. Heading the other way is a package including left-handed starter Kyle Harrison,