Filipe Luis is wanted by Chelsea (Picture: AP)

Chelsea are believed to have made an improved offer of £15m for Atletico Madrid’s Filipe Luis.

The Blues had a £12m offer rejected by the Spanish champions last week, with reports suggesting the left-back may have to stump up the remainder of the cash to meet his own buy-out clause.

Atletico are said to be demanding £19m for the 28-year-old, with Chelsea keen to secure his signature as they look to replace Ashley Cole, who signed for Serie A giants Roma yesterday.

But the Blues are reluctant to pay the full asking price, as boss Jose Mourinho also keeps close tabs of Sevilla’s Alberto Moreno and Marcus Rojo of Sporting Lisbon, both of whom are reported targets of Liverpool.




However Luis remains Mourinho’s prime target to fill the left-back void, with the Blues’ manager having already had a £32m offer for striker Diego Costa accepted by Atletico.

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