In 6 minute Edin Dzeko (AS Roma) finds some space inside the box to meet a beautiful cross and fires the ball inside the back of the net. 1:0
Another goal, 58 minute Daniele De Rossi (AS Roma) puts the ball into the right side of the goal past the outstretched arm of Marc-Andre ter Stegen.
69 minute Daniele De Rossi (AS Roma) has a great chance on the edge of the six-yard box following a lofted pass, but his header lacks accuracy and flies just past the right post.
8 minute before game end, Cengiz Under takes over corner duties. Konstantinos Manolas (AS Roma) gets his head on the ball from the corner and puts it into the bottom left corner. 3:0.
Roma became only the third team in Champions League history to overturn a first-leg defeat of three goals or more – Deportivo La Coruna against AC Milan in 2003 and Barcelona against Paris St-Germain last season.
On this occasion, runaway Spanish league leaders Barcelona were on the receiving end of an unthinkable result.
They had no answer to Roma's high-tempo, energetic performance which brought a richly deserved victory.
Roma striker Edin Dzeko told BT Sport: "It is difficult to believe but we did it and did it in style :
"Nobody believed in us before the game – they gave us a 5% chance of winning – but against such a team like Barcelona, you expect that after losing the first game 4-1.
Barcelona, playing 4-4-2, had no match for the power and presence of Edin Dzeko up front
Barcelona will travel home wondering how they managed to lose the tie with a 4-1 result at the Nou Camp in their pockets.
Credit: www.flashscore.com, www.bbc.co.uk