What position did Rafael Palmeiro primarily play?

What uniform number did Manny Machado wear with the Padres? What position did Max Scherzer primarily play? Which player was nicknamed "Mad Max"? Which player was nicknamed "A-Rod"? What position did Jimmie Foxx primarily play? Jimmie Foxx is best known for playing with which MLB team? Which player was nicknamed "Double X"? What position did Mel Ott primarily play?