Very rash to hack down Alexis Sanchez inside the area late on to concede a penalty and nearly throw away the tie for his side. But thankfully for him, Blaise Matuidi was on hand to spare his blushes.
The full-back rolled back the years with an energetic display in both halves of the field. Shut down the considerable threat of David Villa, and provided plenty of great moments pushing deep up the left flank to support his team's offensive efforts.
Was a bit risky with a few of his challenges as he went in rather enthusiastically, but the defender still stuck to his task and fought hard to keep the opposition at bay.
Was rather overshadowed by his exemplary compatriot Thiago Silva, but still went about his business professionally at the back, and acquitted himself well.
The Brazilian’s stellar defending was a big reason that Lionel Messi was subdued for the vast majority of the first half. He never put a foot wrong, and read the game superbly throughout. After a performance like this, Barca must be rueing the day that they let his transfer slip from their grasps.
Ran down one too many blind alleys and could not channel his considerable pace into the counter-attacking weapon that his team really could have used.
Never ran around much, but the veteran Englishman was still a picture of cool in the centre of the park, picking his passes well, and providing a decent threat from set-pieces.
After an encouraging performance during the first half, the playmaker began to play within himself somewhat after the break, and seemed a tad reluctant to take any risks with the ball.
The midfielder won the ball back more than once to spark his side forward on the break, but his greatest contribution was to come right at the end, as he steered home a potentially priceless equaliser.
His ability to win free kicks was a key part of PSG’s first-half display. The Argentine nearly broke the deadlock in the opening five minutes with a shot from inside the box that hit the post. But he was markedly anonymous during the second half.
The big Swede acted a very important outlet for his side in relieving pressure, and his strength and vision enabled PSG to turn defence into attack quickly. Bundled home an equaliser in the 79th minute, before setting up another leveler for his side with a towering header.
Some excellent saves in the first half kept his side in the game during a series of dangerous PSG attacks. Despite a gaffe for their equaliser at the death, the keeper can still take plenty of positives from this display.
A little subdued in the first half, as he did not always find the space to stretch his legs and overlap down the left flank in his usual manner. Assumed more offensive positions in the second half, and was a more effective cog in the team's attack.
The Brazilian full-back is known for racking up the assists, but his feed for Lionel Messi’s opener must surely take its place right at the top of his catalogue. He connected with the outside of his boot perfectly, and bent a beautiful pass right into the path of the Argentine.
The Argentine was more assured than his defensive partner Gerard Pique, as his superior anticipation and mobility allowed him to make a few important challenges inside and around his own penalty area.
Looked suspect for a large portion of the first half defending against the pace and movement of the Ligue 1 side on the counterattack. One or two narrow offside calls saved his poor positioning from being fully exposed.
As ever, the midfielder was at the heart of another dominant display of possession from the Catalan outfit. He was not always able to be as incisive with his passing as he would have liked, but his accuracy and ability to keep play flowing was vital for his team. Kept his cool to bury a late penalty that made it 2-1.
The diminutive attacking midfielder drifted in and around the front three, always making himself available for support or quick passing triangles. He made sure that Barca kept hold the ball well in the opposition half.
At times, he was slow to get back and protect his defence as PSG found a fair bit of joy moving forward on the break. He would have perhaps been better served sitting a little deeper against the opposition's fluid forward play.
The Chilean was largely underwhelming, with a poor piece of control to waste a glorious opening a particularly troubling moment. But to his credit, he never stopped working, and he got his reward by winning the penalty that gave his side a brief lead late on.
The mercurial forward in truth was rather ineffective for most his time on the pitch, which did not last beyond the interval as a hamstring injury signalled an early end to his evening. But despite that, he still managed to leave his fingerprints all over proceedings with a clinical finish from a narrow angle that handed his side the lead.
A rather frustrating outing for the forward, who was never really able to get into full flow and was mostly quiet throughout the game. Subbed in the second half.
Kept the ball reasonably well in his spell on the pitch, but was failed to really stand out.
Had a decent half-chance on goal late on, but fluffed his lines with the game becoming more stretched.
Never really got going, and was not successful with his dribbling after coming on.