SAN FRANCISCO — It will go down as one of the odder offensive outbursts of the season.

Casey Schmitt, Mike Yastrzemski and Willy Adames hit home runs, Heliot Ramos collected four RBIs and the San Francisco Giants outslugged the visiting Boston Red Sox for a 9-5 victory to compete a three-game series win Sunday afternoon.

Yet even as the rotation shines, offseason signing Justin Verlander has encountered his own set of challenges. Verlander recently returned to the mound last Wednesday after suffering a strained right pectoral, and in that outing, he allowed 4 runs in 4.2 innings—giving up 7 hits and 1 walk—and took the loss.