*.PSG have already tied up deal for Chelsea defender David Luiz *.French champions also interested in Oscar, Hazard and Cech *.Chelsea considering using Lavezzi in negotiations Chelsea have made an enquiry for Paris St Germain’s Ezequiel Lavezzi. The French club have signed David Luiz and are keen on taking Eden Hazard, Oscar and Petr Cech from Chelsea’s squad too. Yet in the throes of negotiations Chelsea are understood to have asked about a price for Argentine Lavezzi who is keen to play in a more competitive league. Chelsea are looking for striking options after Samuel Eto'o was placed on the free transfer list, and are thought to be interested in Lavezzi to come in alongside Atletico Madrid forward Diego Costa. Jose Mourinho also likes Manchester City target Eliaquim Mangala of Porto after being rebuffed in enquiries for Raphael Varane at Real Madrid.