There is no hiding place in the Champions League, but Ole Gunnar Solskjaer probably wanted one as he and his Manchester United team were outclassed and outsmarted by Thomas Tuchel and Paris Saint-Germain in the first leg of this round-of-16 tie at Old Trafford.
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.
The English giants will also have to cope without Paul Pogba in three weeks' time as he was sent off a minute from time to round off a awful night for the hosts.
Solskajaer said: 'You could see we have not played at this level for a while.
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. It was one of those experiences that can go either way, but it's not going to be a season-defining one for us. "Today we weren't at the level, this is a level up from what we've played against".
Di Maria was predictably booed throughout the night by United's supporters, who felt the South American could have done a lot more to succeed during his time at Old Trafford, and this hostile environment posed a further challenge for the 30-year-old.
But the Argentine silenced his detractors by setting up both goals and also mocked the throwing of a beer bottle at him by pretending to drink from it.
PSG was expected to represent the stiffest of tests, but recent injuries to Neymar and Edinson Cavani will blunt an attack which scored a Champions League-high 17 goals in six group-stage games. "It has to be one that we're going to learn from".
As Di Maria sent in a cross, Mbappe darted between center backs Eric Bailly and Victor Lindelof and clipped the ball under goalkeeper David de Gea for his 23rd goal of the season.