Barcelona's Marc-Andre ter Stegen feels a moment of humiliation last time he played against Roma at the Stadio Olimpico made him a stronger goalkeeper.
Ernesto Valverde's men are in the Italian capital for the second leg of their Champions League quarter-final, boasting a 4-1 lead.
Germany international Ter Stegen impressed in that match and is indisputably Barca's number one.
That was not the case for the sides' meeting in September 2015, however, when he was generally selected for cup games before Claudio Bravo retook the gloves for La Liga duty.
Alessandro Florenzi's remarkable long-range strike from on the right touchline and just inside the Barcelona half caught out Ter Stegen and helped Roma to a 1-1 group-stage draw.