Aitor Karanka: Middlesbrough boss has brought in Real Madrid keeper

The 25-year-old has represented Spain at under-19 and under-20 level and has made over 140 appearances for Real's B and C teams.

Paperwork to register Mejias Osorio, who made his Madrid bow back in 2011, was submitted on transfer deadline day but Boro have had to wait for international clearance.