Chelsea have opened talks with Crystal Palace over the potential transfer of Jean-Philippe Mateta, who currently plays as a forward. Negotiations are active and ongoing after an opening bid was submitted, though there is reportedly still some distance between the clubs on valuation. However, discussions are said to remain open and constructive - as both sides explore whether there is a deal to be done. Chelsea remain optimistic, but the deal is not without hurdles. Juventus, Milan and Liverpool continue to monitor developments and could yet re-enter the race if negotiations stall or valuation gaps remain unresolved. At 1.64 goals scored per game this season, Chelsea already pose a big threat. Jean-Philippe Mateta would be expected to maintain that level and give them another reliable option in attack. Crystal Palace continue to be linked with Evann Guessand, Sidiki Cherif and El-Ouas Zakaria while Chelsea are also rumoured to be tracking Joao Neves, Guler Arda and Yisa Alao. More on this story as it develops. Need more Chelsea transfer rumours? Follow @PlayerSwitchCom on Twitter for up-to-the-minute news from Chelsea.