Chelsea are reportedly closing in on the appointment of Napoli coach Maurizio Sarri to take over from manager Antonio Conte, and the new man is said to want to bring Dries Mertens with him from the San Paolo.
It is not yet clear what will happen to Chelsea's current manager Antonio Conte with the club undecided on his future but it now appears nearly certain that Sarri will be at Stamford Bridge next season.
Maurizio Sarri is moving ahead with finalising the makeup of his backroom staff at Chelsea after moving closer to securing Giovanni Martusciello, Inter's technical collaborator.
He has been a target for Chelsea previously, with current Blues boss Antonio Conte interested in signing him in each of the last two summers, only for the club's hierarchy to deem him too old and too expensive.
"[Chelsea fans] can expect nice football because he is a very good coach", Koulibaly told talkSPORT after Senegal's win.
"It's disappointing that he leaves like this".More news: Bolton to Visit Moscow, Plan Possible Trump-Putin Meeting
The £24.5 million release clause in Mertens' Napoli contract expired last week, which will play into the Serie A club's hands.
It is, therefore, hardly surprising that the 31-year-old has been a highly sought-after player in the transfer market for well over a year, with Chelsea in particular, holding a long-standing interest in him.
Sarri had been in charge of Napoli since 2015.
"I hope he will win something with Chelsea because he's a nice coach".
"When a person like this comes to a new club, he needs time". We have seen many experienced players struggle to perform well in the Premier League and some might even recall Andriy Shevchenko struggling a bit during his time at Stamford Bridge.