What position did Keith Hernandez primarily play?

What position did David Wright primarily play? David Wright is best known for playing with which MLB team? What uniform number did David Wright wear with the Mets? Which player was nicknamed "Captain America"? Keith Hernandez is best known for playing with which MLB team? What uniform number did Keith Hernandez wear with the Mets? What position did Gary Carter primarily play? What position did Anthony Rizzo primarily play?