Barcelona coach Xavi is surprised seeing Real Madrid sell Casemiro to Manchester United.

Xavi commented on Casemiro's departure, paying tribute to the Brazilian.

"He is a player who has defined an era in football and at Real Madrid," Xavi said.

"They have signed players to replace him, but I don't want to talk too much about that. They are decisions made by the opposition and I don't get involved in that."