Yastrzemski went 1-for-4 with a solo home run in Monday's 9-1 win over San Diego.
The outfielder went deep in the fourth inning off San Diego starter Yu Darvish. Yastrzemski hasn't been able to make a big impact in September, hitting .241 (7-for-29) with two home runs, six RBI and seven runs scored in 11 games. With a .222/.306/.456 slash line through 483 plate appearances, he's had to rely on solid power hitting (23 homers, 25 doubles, .234 ISO) to be effective. Expect Yastrzemski to work in a strong-side platoon role in center field with Austin Slater and Steven Duggar taking the weak side.