The referee who took charge of Barcelona’s remarkable 6-1 Champions League victory over PSG faces the prospect of being demoted.

Reports in Spain claim that Deniz Aytekin may be removed from Champions League duty following his display, which was marred by a number of controversial decisions.

The German official’s decision not to award PSG a penalty when Javier Mascherano brought down Angel di Maria in the box has fallen under particular scrutiny.

Mascherano later admitted: “It is clear that I did foul Di Maria but I think that is not the reason why we eliminated PSG.

Aytekin went on to award Barcelona an injury-time penalty when Luis Suarez fell in the box under minimal contact. Neymar converted the spot-kick before Sergi Roberto scored in the sixth minute of injury-time, as Barcelona won the tie 6-5 on aggregate.

The referee has been heavily criticised in the French press for his performance and now the Spanish publication Marca are reporting that Aytekin is likely to be struck from the Champions League match officials list.

The story of Barcelona's incredible comeback against PSG Show all 13 1 /13 The story of Barcelona's incredible comeback against PSG The story of Barcelona's incredible comeback against PSG Barcelona's night got off to the best possible start with Luis Suarez scoring in the 3rd minute. Getty The story of Barcelona's incredible comeback against PSG Excellent improvisation from Andres Iniesta caused Layvin Kurzawa to convert the ball into his own net. Getty The story of Barcelona's incredible comeback against PSG After the half-time interval, Lionel Messi put his name on the scoresheet from the penalty spot. Getty The story of Barcelona's incredible comeback against PSG However, when Edinson Cavani grabbed a vital away goal for the visitors, Barca's hopes looked lost. Getty The story of Barcelona's incredible comeback against PSG Cavani could not hide his emotion after scoring the goal which, at that point, had looked to have ended Barcelona's hopes of qualifying. Getty The story of Barcelona's incredible comeback against PSG Three minutes from time, Neymar struck back with a splendid free-kick which beat Kevin Trapp at his near post. Getty The story of Barcelona's incredible comeback against PSG Into stoppage time, and after Marquinhos' foul, Neymar converted Barcelona's second penalty of the night. Getty The story of Barcelona's incredible comeback against PSG In the final minute of added on time, Neymar's lofted pass found Sergi Roberto in the box. Getty The story of Barcelona's incredible comeback against PSG The 25-year-old lifted the ball over Trapp and into the far corner to complete the Champions League's greatest-ever comeback. Getty The story of Barcelona's incredible comeback against PSG Sergi Roberto was duly mobbed by his teammates, as scenes of pandemonium spread around the Nou Camp. Getty The story of Barcelona's incredible comeback against PSG Unai Emery, meanwhile, could not look. Getty The story of Barcelona's incredible comeback against PSG As our chief football writer Miguel Delaney wrote, the night was one of the sublime, the ridiculous, and the historic. Getty The story of Barcelona's incredible comeback against PSG Barcelona progress into the quarter-finals, along with Bayern Munich, Real Madrid and Borussia Dortmund. Getty

That decision ultimately rests with former referee Pierluigi Collina, who now works as Uefa’s Head of Refereeing.

“Aytekin's match report has reached Pierluigi Collina, head of the European Refereeing committee, at the headquarters in Nyon,” Marca reports.

“While the Federation has publicly come to his defence, it has also internally gone over the mistakes made, as is customary after matches.”

Aytekin chose not to award Di Maria a penalty (Getty)

PSG head coach Unai Emery was less than impressed with Aytekin’s display and cited his refusal to award Di Maria a penalty as one of the key turning points in the galling defeat.

“We had chances to make it 3-2 and then the refereeing decisions, I don't know if they were right or not, but for sure they damaged us” he commented after the match. “Then in the last two minutes we lost everything we had recovered in the second-half.”

Earlier in the week, Fifa president Gianni Infantino came out in support of Uefa’s group of elite match officials and added that the introduction of Video Assistant Referees will cut down on the number of contentious decisions in the future.

Barcelona vs PSG player ratings Show all 22 1 /22 Barcelona vs PSG player ratings Barcelona vs PSG player ratings Marc-Andre ter Stegen - 6 out of 10 Was rarely tested on an evening when all the action was taking further place up the pitch. Did his job when called upon. Getty Barcelona vs PSG player ratings Gerard Piqué - 7 Defiant and resilient throughout, displaying composure at the back and technical ability on the ball too. Getty Images Barcelona vs PSG player ratings Javier Mascherano - 7 Gave his all. Showed his intent from the start, putting in a series of important challenges and blocks. AFP/Getty Images Barcelona vs PSG player ratings Samuel Umtiti - 7 Dominant in the air and dominated in his battles with Cavani. Getty Images Barcelona vs PSG player ratings Rafinha - 6 Dangerous in drifting in from the flank and excellent in finding the right space but some of his deliveries were off the mark. Nonetheless, proved to be a nuisance for much of the night. Getty Barcelona vs PSG player ratings Sergio Busquets - 6 It was a scrappy and frantic night for the Spaniard. His challenges were mistimed and his passes misjudged but his energy was still invaluable in Barcelona's pressing game. Getty Images Barcelona vs PSG player ratings Ivan Rakitic - 7 A bundle of enegery throughout. His challenges were vital in breaking up PSG's forward game but almost cost Barcelona the game in allowing Kurzawa to set up Cavani for his away goal. Getty Images Barcelona vs PSG player ratings Andres Iniesta - 7 Pulled the strings for much of the, playing passes left, right and centre, and wasn't afriad to try his luck from outside the box. Dwindled in influence as the game wore on. AFP/Getty Images Barcelona vs PSG player ratings Lionel Messi - 7 Here, there, everywhere. It was another trademark performance from the Argentine but on this occasion he wasn't the man who Barcelona turned to. AFP/Getty Images Barcelona vs PSG player ratings Luis Suárez - 7 Showcased the best of his poaching abilities to snatch Barcelona's first goal and proved to be a menace for the entire 95 minutes. AFP/Getty Images Barcelona vs PSG player ratings Neymar - 9 Absolutely sensational. Was instrinsic to Barcelona's late fightback, scoring their first fourth and fifth goal before setting up Sergi Roberto's winner with an exquisite assist. Getty Barcelona vs PSG player ratings Kevin Trapp - 5 Poor decision-making handed Barca their first and failed to effectively deal with Iniesta's back-pass for the second. AFP/Getty Images Barcelona vs PSG player ratings Thomas Meunier - 4 His ill-timed foul on Neymar handed Barca their first penalty and third goal. Let down by sloppy mistakes. AFP/Getty Images Barcelona vs PSG player ratings Marquinhos - 4 Should have done much better for Barcelona's second, failing to assert himself against Iniesta inside his own box. It was night to forget in all for him. AFP/Getty Images Barcelona vs PSG player ratings Thiago Silva - 6 As ever, Silva was PSG's warrior. But although he rarely shirked a challenge even he was suspectible to lapses in concentration tonight and poor decision-making. Getty Images Barcelona vs PSG player ratings Layvin Kurzawa - 4 His disastrous attempt at a goal-line clearance handed Barcelona their second and he clearly struggled against Rafinha's pace and trickery. Impressive assist for Cavani's goal but, in all, the occasion appeared to get to him. AFP/Getty Images Barcelona vs PSG player ratings Adrien Rabiot - 5 Failed to deal with Barcelona's high-intense approach and incessant press. AFP/Getty Images Barcelona vs PSG player ratings Marco Verratti - 6 Started well but grew increasingly timid and quiet as the game wore on. Conceded a number of unnecessary challenges. AFP/Getty Images Barcelona vs PSG player ratings Blaise Matuidi - 4 Little of note to say. Looked overwhelmed at times. Getty Images Barcelona vs PSG player ratings Lucas Moura - 5 Kept himself busy in the first half but was repeatedly targeted by Barcelona's enforcers and struggled to shine as a result. AFP/Getty Images Barcelona vs PSG player ratings Edinson Cavani - 6 Did what was asked of him in expertly clinching PSG's vital away goal. Should have converted an early second-half chance though. Let down by his team-mates. Getty Images Barcelona vs PSG player ratings Julian Draxler - 5 Another player who failed to live up to the big occasion. AFP/Getty Images

"Whether that particular case was an injustice or not, we can leave it to the judgement of the referee,” he said.

"We saw was an incredible football match, whatever the result would have been at the end. This shows that football is really a fantastic game. When you feel you have seen everything, something else comes along. It's just amazing and incredible.

"We have to really be careful in the International Football Association Board if we want to touch the rules, because football is such an incredible game.