The Inter Milan coach has been lined up as Ferguson's replacement when the Scot decides to call it quits after 25 years in charge of Old Trafford.
Ferguson's future at United has been discussed with increasing intensity over the last few seasons as he approaches his 69th birthday - which falls on December 31.
If Manchester United manage to defend their title this season, they will supplant arch-rivals Liverpool as the team with the most number of league titles won in England at 19. Ferguson has helped United win 11 titles so far.
It's a record that has kept Ferguson going all these years and if his wish finally comes true, Ferguson will be tempted to call time on his career.
Many names have been linked with the Old Trafford job if Ferguson decides to retire.
Mark Hughes, Martin O'Neill and David Moyes have been linked with the hotseat but Mourinho's credentials outshine them all.
Mourinho is a born-winner and he has won league titles in three different countries. He has also won the Champions League title with FC Porto.
The former Chelsea boss, who is not well-liked in Serie A, has been looking for a way out of his Inter job. He has also been linked with a move to Real Madrid.
But it has also been reported that the Portuguese is desperate to return to England - and the United job is the one he wants most of all.
Ferguson's retirement has been a closely-guarded secret ever since he did a dramatic U-turn in 2002. And if United manage to retain the league title and win for the fourth successive season, it could prompt a historic change at Old Trafford.