Mike Yastrzemski, grandson of Red Sox legend Carl Yastrzemski, homered at Fenway Park because sports are undefeated, This is the Loop

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It'll be emotional': Carl Yastrzemski on Giants outfielder, grandson playing against Boston Red Sox

Carl Yastrzemski throws out first pitch to Grandson Mike, by Billie Weiss

Red Sox legend Carl Yastrzemski throws first pitch to grandson Mike

It'll be emotional': Carl Yastrzemski on Giants outfielder, grandson playing against Boston Red Sox

A legacy in left field: Giants OF Mike Yastrzemski visits with legendary grandfather - Yaz - and homers in fairytale trip to Fenway Park

Red Sox icon Carl Yastrzemski's GRANDSON homers in his first game at Boston's Fenway Park

It'll be emotional': Carl Yastrzemski on Giants outfielder, grandson playing against Boston Red Sox

Carl Yastrzemski throws out first pitch to Grandson Mike, by Billie Weiss