What position did Johan Santana primarily play?

What uniform number did Dave Stewart wear with the Athletics? What position did Mark Buehrle primarily play? Mark Buehrle is best known for playing with which MLB team? What uniform number did Mark Buehrle wear with the White Sox? Johan Santana is best known for playing with which MLB team? What uniform number did Johan Santana wear with the Twins? What position did CC Sabathia primarily play? CC Sabathia is best known for playing with which MLB team?