What uniform number did David Ortiz wear with the Red Sox?

Carl Yastrzemski is best known for playing with which MLB team? What uniform number did Carl Yastrzemski wear with the Red Sox? What position did David Ortiz primarily play? David Ortiz is best known for playing with which MLB team? What position did Pedro Martínez primarily play? Pedro Martínez is best known for playing with which MLB team? What uniform number did Pedro Martínez wear with the Red Sox? What position did Carlton Fisk primarily play?