Solskjaer was unfortunate to lose Martial and Lingard to muscular injuries before the start of the second half, and their withdrawals not only critically diminished United's ability to pin PSG back and defend from the front, but also served to highlight the squad's lack of depth.
It was one of those nights for the home side. This is risky as you can be caught on the counter, but we played with a good structure and mental approach and a huge amount of confidence. It has to be one that we are going to learn from.
The Red and Blues doubled their lead just seven minutes later when Di Maria played in Kylian Mbappe who slotted the ball past David de Gea to seal the 2-0 victory in the first leg of the round of 16 tie.
However, it will certainly sting the Theatre of Dreams to know that both the goals were created by Di Maria, the first nearly entirely a result of his brilliant corner-kick and poor marking by Matic and the second through a well-timed counter-attack.
Buffon became only the fourth player to feature in the Champions League at the age of 41, so is this a hint that PSG should activate the extension clause in his contract?
"We needed to stay united with the two central midfielders playing together nearly as two number sixes to take the game in the opposition half and control the pace there and use the rhythm to create chances".
Who owns that 'delightful' tiger, Houston officials ask
The tiger was tranquilized in order to move it out of the house, officials said. "Malayan tigers surviving on the Malay Peninsula are critically endangered with an estimated population of 300 remaining in the wild".
"We weren't at the right level, but it's a level up from where we've played", Solskjaer told a news conference.
It was United's first defeat under caretaker manager Ole Gunnar Solskjaer since he took over from the sacked Jose Mourinho in December, and in many ways, it was a reality check after 10 wins in 11 games domestically for the Norwegian.
'This won't be a season-defining experience for us. "You can see that we've not played games at this level for a while".
"We know we are capable of winning, but they are capable of winning in Paris as well", the German added.
PSG head coach Thomas Tuchel thought his Argentinian forward had been below par before the interval but was delighted he delivered a stunning riposte in the second half.
Di Maria came off to be replaced by Colin Dagba before Solskjaer made his final change of the night as Rashford made way for Romlu Lukaku. He had a bit of a hard time because I was close to him.