United slumped to their first loss under their caretaker manager as PSG scored two second-half goals to silence Old Trafford.
“It was the kind of game we thought it was going to be,” Solskjaer said. “There was nothing in the first-half. But it changed when they got the first goal. It has to be an experience we learn from.”
United suffered injuries to Jesse Lingard and Anthony Martial in the first half, but Solskjaer refused to blame them for the loss.
“You can’t say that’s a reason, we had quality players to come on but Lingard and Martial give us something and let’s hope they are not too serious. They are muscle injuries, we have to wait a couple of days.”
On Paul Pogba’s sending off in the final minutes of the match, which rules him out of the second leg: “Paul Pogba is trying to get his body across and Dani Alves is clever enough to put his foot in there. Paul wants to shield the ball, he’s unlucky.
“Mountains are there to be climbed, you can’t lay down and say this is over We will go there, play our game and improve from today.
“Today is a reality check for us.”
PSG boss Thomas Tuchel was delighted with his team’s second-half display, which leaves them in a commanding position heading into the second leg in Paris on 6 March.
“We lost too many easy balls in the first half but the second half was really excellent.
“We deserved to win, and to do so here at Old Trafford just now, I congratulate my team – but it’s only half-time and we still have to play at the Parc des Princes.”
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