Solskjaer can still prove his worth in upcoming fixtures against Chelsea, Liverpool and Manchester City, but he needs to deliver in at least two of those games to prove he can be an option for the United hierarchy in the long term.
Following the full-time whistle, the Norwegian said it was up to Sanchez himself to figure out how to regain the kind of scintillating form that convinced United to pay him £391,000 a week.
Find out how to live stream today's epic Champions League clash between PSG and Manchester United streaming on your desktop or mobile device here.
To rub salt into the United wounds, Di Maria was then on hand to provide the assist for the second goal of the game, firing the ball into the path of wonder kid Kylian Mbappe to slot home on the hour mark and put the game beyond reach for United.
As for the Champions League, Solskjaer said the club will aim to get to halftime of the second leg with at least a 1-0 lead.
Take a Look At This Apex Legends Weapons Chart
Another day, another story about how Respawn's new free-to-play battle royale game Apex Legends is knocking it out of the park. Those numbers pale in comparison to Apex Legends , of course, but any increase for a two-year-old game is notable.
While Solskjaer returned to Norway to see his family and the squad were given a day off, United were anxiously waiting for news on Sanchez, Martial and Lingard on Wednesday.
"I'm very happy. It's always risky with him, with corners, and of course a superb assist for the second goal in the open position and with a ideal pass for Kylian". United went into the game with high optimism, but PSG's experience and class shone through against Solskjaer's naivety and his side's limitations.
"No, not at all", Solskjaer said.
"This is a top, top team that we played against". It has to be one that we are going to learn from.
You can't give that [the injuries] as a reason [why we lost] because we have players like Mata and Sanchez to come on and they're quality players.
For United's own French World Cup victor, it was a very different night as Paul Pogba was sent off late on and will miss the return leg in his homeland. He will miss the second leg in Paris early next month.
"We couldn't say we were the better team, but they were not better than us either".