Jose Mourinho has said the challenge at Manchester United is not like any he has previously faced in his managerial career.
Although the United manager has been at clubs looking to end spells without a title, he believes the demands at Old Trafford are more complex.
"When I went to Real Madrid, they had gone 25 years without a Spanish Cup and lots of years without a championship," he told reporters.
"Inter Milan were 50 years without a Champions League.
"Those jobs were hard but at United, from...