What position did the man who became the manager of Middlesbrough mainly play?
2013–14 Middlesbrough F.C. season:  On 13 November, José Mourinho's former Real Madrid assistant Aitor Karanka signed a 2 ⁄ -year deal to become manager of Middlesbrough. Aitor Karanka: Aitor Karanka de la Hoz (] ; born 18 September 1973) is a former footballer who played mainly as a central defender (on occasion, he occupied the left back position), and a current manager.
central defender