Barca mounts 6-1 comeback to oust PSG; Roberto nets winner

Barcelona's Sergi Roberto celebrates after scoring the sixth goal during the Champions League round of 16, second leg soccer match between FC Barcelona and Paris Saint Germain at the Camp Nou stadium in Barcelona, Spain, Wednesday March 8, 2017. Barcelona won 6-1. (AP Photo/Emilio Morenatti) (The Associated Press)

Barcelona's Neymar, Luis Suarez and Sergi Roberto celebrate with team mates at the end of the Champions League round of 16, second leg soccer match between FC Barcelona and Paris Saint Germain at the Camp Nou stadium in Barcelona, Spain, Wednesday March 8, 2017. Barcelona won the match 6-1 (6-5 on aggregate). (AP Photo/Manu Fernandez) (The Associated Press)

Barcelona completed one of the most sensational comebacks in soccer by beating Paris Saint-Germain 6-1 to reach the Champions League quarterfinals on Wednesday, scoring the decisive goal of a 6-5 victory on aggregate in the fifth minute of stoppage time.

Sergi Roberto's dramatic late goal sent the Nou Camp wild and made Barcelona the first team ever to overturn a 4-0 first-leg defeat since the Champions League format started in the 1992-93 season.

PSG seemed certain to go through after Edinson Cavani scored a valuable away goal following Barcelona's opening salvo of three goals.

Barcelona needed three more goals to advance, and the feat seemed impossible even after Neymar scored with a free kick in the 88th minute.

But the Brazil striker scored a penalty in the 90th and then followed up with a chipped pass for substitute Roberto to steer the ball beyond goalkeeper Kevin Trapp in injury time.

The winner sent Barcelona's bench flooding onto the pitch as the stadium celebrated.