Forest won 3-2 at Old Trafford, thereby condemning Amorim to two consecutive defeats in the domestic tournament - the first time since August 2022 when he was in charge of Sporting CP.
This result caused Man United to drop to 13th place in the rankings with 19 points - the lowest number of points after 15 matches since the 1986-1987 season.
“We know the situation at Man United. It’s difficult. It’s going to be a long journey to get back to the top. Man United is a big club, when you lose a game, everything is really difficult.
I can understand that. I could feel it on the pitch after the first goal. We need to improve many aspects of the game, continue to focus on training in the upcoming sessions,” Amorim said.
Man United were let down by a series of defensive errors that allowed Forest to claim a memorable win at Old Trafford. Nikola Milenkovic opened the scoring with a powerful header after just 90 seconds when Lisandro Martinez failed to jump to clear a corner.
In the second half, a bad pass from Bruno Fernandes and a mistake from goalkeeper Andre Onana created conditions for Morgan Gibbs-White to score the second goal.
Man United's third goal came from a series of previous errors by Onana, Martinez and Matthijs de Ligt when Chris Wood jumped up to head the ball.
"I had this situation, even worse than at Sporting at first. It feels the same for me, but for the world it's completely different. Sporting is in Portugal, but with Man United, the team will get a lot of attention.
I was in a similar phase at Sporting CP and if you have a little experience in football, it happens to many teams. So we have to keep working to improve the team. We need time to change things day by day,” added the Portuguese tactician.
Statistics show that in the match against Forest, Man United controlled the ball over 71% of the time, had 17 shots, 7 of which were on target.
The Old Trafford team dominated their opponents, but mistakes and poor ability to take advantage of opportunities made them pay the price.