BOSTON — Red Sox first baseman Triston Casas homered in his first three at-bats Sunday in the opener of a split doubleheader against the Minnesota Twins .
Casas, 24, drove in seven runs in the 8-1 victory .
“It’s funny, I was getting chirped on deck,” Casas said. “Nobody was telling me anything about the previous home run. They just wanted another one, another one and another one. That was funny. That’s a credit to the fans, expecting not just greatness but perfection. They bring the best out of me.”…