Red Sox player' Carl Yastrzemski throws a first pitch to his 29-year-old Giants rookie grandson

Mike Yastrzemski crushes Fenway Park debut, draws ovation – Boston Herald

Red Sox legend Carl Yastrzemski throws out first pitch to grandson Mike

Yastrzemski's first pitch

Mike Yastrzemski - Wikipedia

MLB: Yaz's grandson Mike hits HR; Giants beat Red Sox 7-6 in 15

Cueto, Yastrzemski lift Giants past Marlins

Red Sox player' Carl Yastrzemski throws a first pitch to his 29-year-old Giants rookie grandson

At 30 years old, Mike Yastrzemski is the Giants' best player. These two women made it possible., Sports