"As the leader of this squad I want to start by saying sorry to all the Manchester United fans around the world,” the Portuguese coach wrote in United Review. “Sunday's 4-0 defeat at Chelsea was not a United result; it was a result that has made us all extremely sorry for all our supporters and we apologise for it," he wrote.
"Once again at Stamford Bridge our fans were sensational. I cannot think of another set of supporters who would be singing for 90 minutes like that when their team was losing. They were a credit to the club and I feel so sorry for them that the result could not match their performance.”
Mourinho knew that he could make amends by beating United’s local rivals in the EFL Cup this evening - and that’s precisely what he did.
Juan Mata scored the only goal of the game to stretch Pep Guardiola’s run without a win to six matches.
Video: Mourinho's gesture to United fans
As Mourinho walked off down the touchline, towards the tunnel, he made an interesting gesture to the fans inside Old Trafford.
The 53-year-old signalled 4-0, before clutching his hands together and bowing.
This was his way of personally apologising for Sunday’s debacle at Stamford Bridge.
United to face West Ham in next round
United, meanwhile, have been drawn to face West Ham in the EFL Cup quarter-finals.
Will Manchester United win the EFL Cup? Have your say by leaving a comment below.