Benfica have told Manchester City to up their bid for defender David Luiz.
A Bola says City have slapped in an £18 million offer for the young Brazilian, who can play at centre-half and left-back.
However, Benfica are insisting Luiz will only leave if City meet his £40 million buyout clause.
For his part, Luiz is happy to sit tight and watch developments from the sidelines as he knows Real Madrid and Chelsea are also keen on his signature.
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