Chelsea will need to pay upwards of £30million if they want Benfica defender David Luiz.
The Blues are eyeing a new central defender with Luiz fitting the bill perfectly and were prepared to pay £27million for their man but Benfica have now demanded more.
Luiz, who was named in Brazil's squad by new coach Mano Menezes, is being seen as a good replacement for Ricardo Carvalho who is reportedly set to join former Blues boss Jose Mourinho at Real Madrid.
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