But the Special One’s emotional comeback is unlikely to be officially announced until July 1.
Until then both Chelsea and the outgoing Real Madrid chief will shy away from publicly confirming any deal is done.
Mourinho is still under contract at Real. But, barring any last-minute hitch, he will be back at Stamford Bridge on a £10million-a-year package.
SunSport can reveal he and Blues owner Roman Abramovich were spotted having dinner at La Famiglia restaurant in Chelsea.
Dutch star Wesley Sneijder, who played for Mourinho at Inter Milan, has revealed the Portuguese coach harbours a deep love of Chelsea.
He said: “In Jose’s heart it goes his wife, his kids, then Chelsea.
“He has never made any secret about wanting to coach in England again — and when you hear him talk about Chelsea I don’t think he could coach any other team there.
“It sounds crazy, but when he talks about the Premier League and Chelsea, it’s like a kid who is telling his parents what he wants for Christmas.”
Chelsea are keen to use the big announcement to maximum effect before jetting off on their pre- season Far East tour.
So Mourinho’s first match back is set to be the friendly against a Singha All Stars XI in Thailand on July 17.
Chelsea also aim to field some stellar signings that day — they have been linked with Radamel Falcao, Robert Lewandowski, Andre Schurrle and Marouane Fellaini.