Here is a look at the xG stats from PSG vs Barcelona (Second Leg Round of 16) in the Champions League on 10 March, 2021. Barcelona were trailing 4-1 from the first leg, but the game ended in a 1-1 draw to give Paris a 5-2 win on aggregate. Barca had 73% of possession and thrice as many shots, but weren’t able to convert them into goals.
xG PSG 1.53-2.55 Barca shots map (Actual score Paris SG 1-1 Barcelona)
1-0 Mbappe penalty goal xG 0.75
1-1 Messi goal xG 0.01
Full time post match stats for comparison (Paris SG Barca 1-1); PSG on left, Barca FT stats on right