The 22-year-old rookie hammered both blasts to right field. The first one went 418 feet and left his bat at 108.7 mph. The second one went 410 feet with a 104.9 mph exit velocity. 2) As Mayer wore the Wally head in the dugout — as all Red Sox players do to celebrate their home runs — pitcher Lucas Giolito kissed both cheeks.

Marcelo Mayer’s first major league home run was greeted by a chorus of boos as he rounded the bases at New York’s Yankee Stadium last week

Touted Red Sox prospect Marcelo Mayer crushes his first two home runs in Boston in his first two at-bats.