PSG started the semi-final superbly.
After a quarter, Angel Di Maria sent the ball in at a corner and Marquinhos scored 1-0 with the header.
The home team created additional chances to score - while Manchester City had big problems.
But in the second half, PSG lost the match.
Within seven minutes, City had turned around.
Two quick goals by City
After 64 minutes, Kevin De Bruyne sent a free kick in high over the penalty box.
Goalkeeper Keylor Navas misjudged the ball and made a mistake when he let it pass.
After 71 minutes, PSG's Riyad Mahrez fell awkwardly, but was determined to stay in the match.
Two lead-heavy setbacks.
Then came the next blow.
Gueye expelled
With a quarter of an hour left on the match clock, Idrissa Gueye was sent off.
He got a red card for going into a challenge studs first.
PSG could not get a receipt after the expulsion.
City have an advantage ahead of their return in the Champions League semi-final.
The team takes 2-1 to the home match on May 4.
Di Maria has made 103 assists during his time at PSG.
Thus, he touched Safet Susic's listing, and he is a record holder in the club.