As for Chelsea, the big transfer window could be called Dries Mertens (32).
According to the Daily Mail, the Blues have established contact with Napoli to discuss the attacker's future.
The London club offers 6 million pounds sterling to repatriate the player this winter, something that Napoli refuses, wishing to keep its element until the end of the season.
Chelsea wants to sign a striker especially to replace Tammy Abraham due to his injury.
The arrival of Dries Mertens could thus open the door to a departure for Olivier Giroud, who recently desired by Tottenham.
The time is short, the Chelsea manager, Frank Lampard will have to act quickly if they want to sign the man who has scored 118 goals in 300 games with Napoli since 2013.