Red Sox player' Carl Yastrzemski throws a first pitch to his 29-year-old Giants rookie grandson
Giants rookie Mike Yastrzemski homers with Hall of Famer grandfather watching at Fenway Park
Yastrzemski's first pitch
Carl Yastrzemski throws a ceremonial first pitch to his MLB grandson M
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Red Sox player' Carl Yastrzemski throws a first pitch to his 29-year-old Giants rookie grandson
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Red Sox player' Carl Yastrzemski throws a first pitch to his 29-year-old Giants rookie grandson
Red Sox player' Carl Yastrzemski throws a first pitch to his 29-year-old Giants rookie grandson
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Carl Yastrzemski throws out first pitch to Grandson Mike, by Billie Weiss
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Yastrzemski's first pitch
