Although Antonio Conte has yet to be given his marching orders from Stamford Bridge, Sarri is poised to take over the helm from his fellow Italian counterpart following further meetings in England's capital this week.
Sky Sports News reported on Tuesday that Sarri's agent is in London to finalise his move to Stamford Bridge as the Blues prepare for a changing of the guard.
The 59-year-old is expected to become Chelsea's seventh manager in six-years once a final compensation deal with Napoli is made official, with earlier reports suggesting the fee could be worth in the region of €5m.
And Chelsea aren't the only club with an interest in the forward.
Brazilian central defender David Luiz had been snubbed by manager Antonio Conte and Gary Cahill's poor form meant that Chelsea had to utilize a young Dane called Andreas Christensen in the heart of the defence.
"[Chelsea fans] can expect nice football because he is a very good coach", Koulibaly told talkSPORT after Senegal's win.
"I'm disappointed that he leaves like this but we have now a big coach (Carlo Ancelotti)".
He impressed Man United supporters with a lively display attacking through the centre during Russia's thumping opening day 5-0 win over Saudi Arabia last week.
The 23-year-old is considered as a rotational option by Juve boss Massimiliano Allegri having played 22 times in Serie A last season and only 110 minutes in the Champions League. We know we can win something with him.
It is true that Hazard dreams about winning the Champions League and Chelsea are now in the Europa League.