What position did Greg Maddux primarily play?

Which player was nicknamed "Big Mac"? What position did José Canseco primarily play? José Canseco is best known for playing with which MLB team? What uniform number did José Canseco wear with the Athletics? Greg Maddux is best known for playing with which MLB team? What uniform number did Greg Maddux wear with the Braves? Which player was nicknamed "Mad Dog"? What position did John Smoltz primarily play?