The last path to a title was ended at an Old Trafford now accustomed to letdowns, as United were knocked out of the Champions League in a 1-0 loss to Atletico Madrid today.
In a tight and tense game, Renan Lodi made the difference by scoring his first goal in the competition in his 25th appearance, meeting Antoine Griezmann's cross with a header after being left unmarked at the far post by defender Diogo Dalot in the 41st minute.
So often the team's saviour, David de Gea was beaten. The goalkeeper feels the pain more, being the only starter still in the team from the end of the trophy-filled Alex Ferguson era in 2013.
"It's not good enough," De Gea said. "It's hard for the club, for us and the fans. This is where we are at the moment. It is a difficult situation, but we have to keep fighting."
Cristiano Ronaldo departed Old Trafford before Ferguson retired and the malaise kicked in. The 37-year-old star returned this season — after collecting trophies at Real Madrid and Juventus — to be the difference-maker. Rather than dazzling, as he did with Sunday's hat-trick against Tottenham, Ronaldo didn't manage a shot against the Spanish champions.