Ole Gunnar Solskjaer acknowledged Paris Saint-Germain were "levels above" Manchester United in causing his first annihilation since taking temporary charge.
United were outclassed by the Ligue 1 pioneers in a 2-0 Champions League loss at Old Trafford on Tuesday, recording a solitary shot on target and conceding to second-half Presnel Kimpembe and Kylian Mbappe goals.
Paul Pogba will be suspended for the second leg after he was shown a late red card with United helpless to cause problems for PSG notwithstanding Thomas Tuchel being without harmed attackers Neymar and Edinson Cavani.
Solskjaer lost both Anthony Martial and Jesse Lingard to damage in the main half as United disintegrated to the heaviest home European loss in the history of the club.
What's more, the caretaker supervisor feels PSG are a case for United to follow in the coming a long time as they endeavor to move back up to Europe's top table once more.
1 - Manchester United managed just one shot on target against PSG tonight, their lowest in a Champions League match at Old Trafford since February 2005 in the Last 16 against eventual finalists Milan.
"We weren't at the correct dimension, however it's a dimension up from where we've played," Solskjaer told a news conference.
"We're on an extraordinary run, in an incredible perspective, yet it's a major advance up and they have quality throughout the group. That is for what reason they're among the favorites for the Champions League however that is the dimension we have to go for as a club.
Ole: "It’s not going to be a season-defining one for us. It has to be one that we’re going to learn from." #MUFC #UCL
"First half I felt they didn't cause us too numerous problems, however we didn't either. A couple of times we did well down our privilege however not enough keeps running into the box, like Mbappe improved the situation his goal. Of course, I thought they guarded truly well.
"We had loads of crosses in the second half yet the movement wasn't there. They were levels above us, we must be reasonable. It will be troublesome [to qualify] however it's not impossible."
Solskjaer demanded his United side must treat their rebuking rout as a learning background and requested a response in front of Monday's FA Cup fifth round outing to Chelsea and their following Premier League amusement at home to title challengers Liverpool.
"Don't be sorry, [it is] something we need to gain from," Solskjaer said of the message he will give his players. "It's a dimension up.
"They were experienced and bought some fouls, it's a learning knowledge. First time Jesse and Marcus played a proper Champions League diversion at Old Trafford and we need to learn. Be that as it may, we can't be sorry as we have Chelsea and Liverpool coming up.
"Of course it's a rude awakening you can see the quality they have, however we need to get to that dimension. We know and we are looking to fortify the squad yet again we need to look at the young players we need to take a stage up for next season."