What position did Ed Reed primarily play?

What position did Junior Seau primarily play? Junior Seau is best known for playing with which NFL team? Which college was Junior Seau playing for when he entered the NFL? What jersey number did Junior Seau wear with the Chargers? Ed Reed is best known for playing with which NFL team? Which college was Ed Reed playing for when he entered the NFL? What jersey number did Ed Reed wear with the Ravens? What position did Troy Polamalu primarily play?