The 35-year-old was originally signed by Mourinho in 2004 from Marseille for £24million, and went on to become a Chelsea legend, with his final kick for the club proving to be the winning penalty in the 2012 Champions League final.
Drogba has just one year remaining on his current contract at Turkish club Galatasary, and would be open to a return to the club where he made himself a legend.
“Drogba is worshiped in this club and this is perfectly normal,” Mourinho told Portuguese paper A Bola.
“I think one day he’ll return to Chelsea.
“He is a very important player in Chelsea’s history and will always be in the memory of the fans, the management, the owner of teammates.
“Didier will have a future at Chelsea. As a coach? I do not know.”
Drogba left Stamford Bridge following their Champions League success last summer, and originally made the move to China.
However that move only lasted half a season, before the powerful forward opted for a move to Galatasary, where he managed five league goals.
Chelsea have made no secret of their desire to sign a new striker this summer, with Manchester United forward Wayne Rooney their number one target.
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