We are delighted to announce the signing of Cristian Ceballos.
Ceballos, 18, spent almost seven years with Barcelona after joining them when he was 11 and can operate as an attacking midfielder or a forward.
Technical co-ordinator Tim Sherwood said: "Cristian trained hard and showed some real quality when he originally spent time here towards the end of last season and was even involved in some of the First Team training.
"There was other interest in him too. He needs to be patient and if he can fulfil his potential we believe he can play at the top level."