Middlesbrough manager Aitor Karanka says Manchester United boss Jose Mourinho is a different man away from the pressure of football.
Having previously worked as Mourinho's assistant at Real Madrid for three years, Karanka will take on his old mentor for the first time on Saturday when Boro visit United.
Mourinho's mind games off the pitch and his antics on the sidelines are well documented, but the Boro boss insists there is more to the Portuguese than meets the eye.
Asked if he is different away from football, Karanka said: "A little bit. Yes, he's different.
"He's different because it is impossible to live 24 hours with that pressure, with that tension that he puts into every single training session or every single game.