Robert Lewandowski scored twice to lead Barcelona to a 2-1 comeback victory over Valencia in their La Liga opener, marking Hansi Flick's first official match as head coach. Valencia initially took the lead with a header from Hugo Duro just before halftime, but Lewandowski equalized in injury time by converting a cross from Lamine Yamal. He then scored the decisive goal from the penalty spot early in the second half after Raphinha was fouled. Despite midfield absences, Barcelona secured the win, with Pedri making a timely return from injury as a substitute. This victory is crucial for Barcelona as they aim to challenge Real Madrid for the title this season. Lewandowski's performance highlights his key role in the team, having scored six goals in four appearances against Valencia during his time at Barça.