What position did Ryne Sandberg primarily play?

What position did Lou Brock primarily play? Lou Brock is best known for playing with which MLB team? What uniform number did Lou Brock wear with the Cardinals? What uniform number did Ernie Banks wear with the Cubs? Ryne Sandberg is best known for playing with which MLB team? What uniform number did Ryne Sandberg wear with the Cubs? What position did Sammy Sosa primarily play? What uniform number did Sammy Sosa wear with the Cubs?