The Ivorian international striker re-joined the London club during the summer on a one-year contract having left the club in 2012 following an eight-year spell.
During his first stint in West London, the 36-year-old quickly adorned himself to the Stamford Bridge faithful and by the end of his stay was widely regarded as the club’s greatest ever player.
Mourinho announced that his re-signing was not a sentimental decision and one done purely for footballing reasons and that stance could well be justified this weekend.
The Blues face the Red Devils without the injured Loic Remy whereas fellow striker and top scorer Diego Costa is struggling to be fit.
In an interview with the official Chelsea website, Mourinho alluded to the fact that Drogba may start the game and concluded that he could play a vital role in the game’s outcome.
“He can play a key role but we have to build the profile of that key role,” Mourinho explained. "It could be to be there when the team needs a player to be there.”
“For this Didier was always a fantastic example of a team player, a club man, and a dressing room man. At the age of 36, after so many years of experience, he has even better conditions to be a key man.
“The players that knew him before had him in their hearts, they know the guy he is. For the other kids that arrived at the club after Didier’s departure – people like Oscar, Willian and Hazard, these guys – I think they understand the meaning of the player at this football club. They were very keen to meet the man who made history at this club.”