Middlesbrough are in advanced talks with FC Porto star Iker Casillas, according to sources that are close to the former Real Madrid shot-stopper.
It is believed that Aitor Karanka's side are willing to pay €13 million in order to bring Casillas to the Riverside Stadium.
This morning, club officials at FC Porto refused to comment on speculation that the former Real Madrid shot-stopper was unhappy at FC Porto.
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