Here is a look at the xG stats for Porto vs Juventus in the Champions League on 17 February, 2021. Porto won this game 2-1, with poor defence costing Juve, just as it had for RB Leipzig against Liverpool.
xG Porto 1.41-0.76 Juventus (Actual score Porto 2-1 Juve)
1-0 2nd minute Mehdi Taremi goal xG 0.69– poor backpass from Juve, and Taremi pounces
2-0 46th minute Marega goal xG 0.46– A goal for Porto at the beginning of the second half
2-1 82nd minute Chiesa goal xG 0.06– In space in the box, but lovely finish
Juventus also had a chance for Alvaro Morata (84th minute xG 0.35) that wasn’t taken.
Full time post match stats FC Porto v Juve Ro16 First Leg for comparison