Second half strikes from Presnel Kimpembe and Kylian Mbappe gave the French champions two away goals that could turn out to be pivotal within the context of the tie. This considered, United's frustration that the referee then made a decision to send Paul Pogba off (he'll now miss the return in Paris) for a second bookable offence in the closing stages was obvious.
"It's a reality check for us", Solskjaer, who had gone 11 matches unbeaten before last night's defeat, said.
"It was a nice comeback for him, I'm very happy for him and of course he helped us a lot".
Marquinhos thanked Tuchel for identifying the potential in him to play in midfield and professed his love for the team after such a convincing collective display.
Yet, for all the positivity of United's return to form in the past two months, they remain 14 points behind Premier League leaders Manchester City and Liverpool and the big rebuilding job required to make the three-time European champions contenders again for this competition was laid bare. "He needs to find himself when he plays because we know there is a quality player there", he said.
'I'd say other teams will be taking notes, knowing they too can mark Pogba out of the game.
"Maybe he was a bit nervous and a bit overused because he plays all the time for us". "I think the past is the past, and you create history, don't tell them".
PSG have struggled on the road in the Champions League against elite opposition but showed little sign of nerves as they stroked the ball around confidently.
Jose Mourinho has been sacked by both Chelsea and Manchester United and finally, Diego Costa left Atletico Madrid for Chelsea, won the league in his first season and then went back to the Spanish capital for another spell with Diego Simeone's side.
The footage shows that - presumably involuntarily - one steward has found himself in the middle of the PSG supporters' section and is being lifted up and down in time with their singing.