Chelsea FC (@chelseafc) July 28, 2014
Mourinho swooped to bring the Ivorian back to Stamford Bridge on a free transfer last week, just two years after the Blues hero left the club for a move to Shanghai Shenhua in China. Since then, the 36-year-old has been in Turkey with Galatasaray, and during his spell away from West London, Drogba has scored 28 goals in 64 games - proving that he still has something to offer.
Now, Drogba returns to the Blues to add depth behind £32m signing Diego Costa, and Chelsea fans were understandably delighted to see one of the club's most decorated players of the last decade back at Stamford Bridge.
Drogba will play for one year, becoming a part of Mourinho's coaching staff as his playing days draw to a close. The Portuguese boss recently said that Drogba's demeanour and the reaction of people around the club made it feel like the Ivorian had never been away.
That feeling has now been heightened after Drogba was assigned his new shirt number. Having been given the number 15 shirt upon his arrival from Marseille back in 2004, Drogba has reclaimed his original jersey - even though he did change to number 11 during his first spell at the club, which is currently occupied by Oscar.
The change means that Egyptian winger Mohamed Salah becomes number 17, after the shirt was vacated by Eden Hazard's change to number 10.