Injured Birmingham City midfielder Mehdi Nafti has revealed he's been helping management as an interpreter.
Nafti said: "Eric Black's departure had an effect on me because now I have to translate all the time. For example, Olivier Kapo's English is as bad as when he first came here.
"But, in all seriousness, if I was in a position like Zarate, I would like someone who could help me every day in terms of communicating and going through the little details.
"The lad is going to be more confident in the changing room if he understands everything and will probably be better on the pitch as well as a result of that. Even if it is only a small detail, it might help him if he understands."
Nafti believes Blues are missing the skills of the currently-injured Kapo but in Zarate he insists they have an ideal replacement to unlock opposition defences.
He said: "Mauro is very young but he is a top-quality player and he will help us a lot. He is like Kapo in that he has got something different about him.
"It can help. At a given point in a game, Mauro can do something different and make the difference - like Kapo can do as well."