A back is a defender.
Just about every team has a player with the number 5, normally a wing-defender.
Neelanjan LakshmanPique
Yes, if you are a defender.
defender
a defender that is on the right side
Defender...
Pressure of the defender
goalie, defender, midfielder, forward
John Terry of Chelsea and England.
Today it is the Brazilian Danny Alaves.
Defender or Midfielder