A defensive mix up between Umtiti and ter Stegen allowed Porto to sneak in between the two of them after good work from Lozano.
He took the ball round ter Stegen and from a narrow angle finished via both posts.
Girona are the ninth Catalan team to play away at Camp Nou, and the other eight all lost on their first attempt.
Have a look at the goal here:
24 February 2018