But for the saves of David De Gea, United would have lost by a heavier margin, but this was still their heaviest European defeat at Old Trafford; prior to this, United had not been beaten by more than one goal at home in over 60 years.
The home fans did their best to create a crackling atmosphere on the club's return to big Champions League nights, although the goading of Di Maria only coaxed a stellar performance from the Argentine, who created both goals for Presnel Kimpembe - who was lucky to still be on the pitch after earlier offences - and Kylian Mbappe.
Ole Gunnar Solskjaer took over as caretaker manager following the sacking of Jose Mourinho in December and United have secured 10 wins in 11 games under his charge, their latest victory a 3-0 win at Fulham on Saturday.
Instead it was United who received the only red card of the game when Paul Pogba was dismissed in the 89th minute.
Air New Zealand flight to Shanghai turned back over Taiwan reference
The airline, the New Zealand government and Chinese authorities have all said it was due to an administrative issue. She said: "I have been issued with an invitation to visit China - that has not changed".
Warren: Trump 'May Not Even Be a Free Person' in 2020
Warren cited the ongoing investigations into Trump, saying: "It's no longer just the Mueller investigation, they're everywhere". He tweeted: "Today Elizabeth Warren , sometimes referred to by me as Pocahontas , joined the race for President".
Leeds winger Jack Clarke released from hospital after falling ill
Leeds United's teenage winger Jack Clarke remains "under observation" after falling unwell on Saturday, says boss Marcelo Bielsa. Marcelo Bielsa's side are now second in the table, trailing Norwich City by two points.
"The second goal was quality by them". We're going to have to go there, believe in ourselves, play a good game and improve from today obviously.
The World Cup victor has scored eight goals and set up another five since Solskjaer took over in mid-December and having been given licence to roam from midfield has looked a player re-born. "You can see that we've not played games at this level for a while". "I just want to keep enjoying my football, being useful to the club and my team-mates, whether on the field or if needed off it".
For around 20 minutes, the Champions League glory days really did feel like they were back for Manchester United. We have to learn from this.
Signed for a then-British record fee in 2014 and sold after one poor season, he helped Thomas Tuchel's side go ahead as Kimpembe turned home his exceptional corner delivery in the 53rd minute.
Buffon was named in PSG's starting XI and the 41-year-old became only the third keeper after Edwin van der Sar and Iker Casillas to reach 50 Champions League clean sheets.