The hosts thought they had won the game in injury time when Romeo Vermant slid in on Wojciech Szczesny before scoring into an empty net - but the goal was disallowed by the video assistant referee for a foul. Club Brugge took a sixth-minute lead when Carlos Forbs burst away down the right before squaring the ball for Nicolo Tresoldi to slide in. But less than two minutes later Barca were level through Ferran Torres' first-time finish from Fermin Lopez's cross. Fermin then curled a shot off the post - the first of three times Barca would hit the woodwork. And suddenly they were behind again as Brugge played their way through their high line too easily and Christos Tzolis fed Forbs, who slotted home inside the box. Barca hit the crossbar twice, through Jules Kounde and then Eric Garcia's drive from at least 30 yards out. And then Yamal struck as he beat two defenders with wonderful skill before playing a one-two with Dani Olmo and beating another man before slotting in. Forbs, who spent last season on loan with Wolves, missed a huge opportunity - but moments later made up for it by running on to Hans Vanaken's through ball before clipping a shot past Szczesny. Brugge thought they had a chance to make it 4-2 when Anthony Taylor awarded a penalty, for an Alex Balde tackle on Forbs, but the decision was overturned by the video assistant referee. And Barca took advantage of that let off when Yamal's cross was nodded into his own net by the unfortunate Tzolis. But right at the end Szczesny, who had dawdled on the ball, got hugely lucky when VAR bailed him out after losing the ball to Vermant.

Garnacho equalised having come on as one of three half-time substitutes with his side 2-1 down after goals from Leandro Andrade and Marko Jankovic had put the hosts ahead following Estevao Willian's early opener for the Blues. Qarabag had lost all seven of their previous matches against English opposition. The last time they were in the Champions League, they faced Chelsea and lost both matches by an aggregate score of 10-0 and secured just two points from six matches. However, they gave Enzo Maresca's side a real scare at the packed 32,000-seater Tofiq Bahramov Stadium, with a squad worth just £22m compared to that of Chelsea - valued at £1.5bn, according to figures by Transfermarkt. And it was Chelsea who initially took the lead. Estevao, 18, cut inside and shot low into the near post after linking well with his Brazilian team-mates Joao Pedro and Andrey Santos in the 16th minute. Yet Chelsea struggled defensively having made seven changes to the team that beat Tottenham on Saturday, with Jorrel Hato, 19, partly at fault for both first-half goals. Qarabag striker Camilo Duran overpowered the Dutch defender when competing for a long ball, hit his shot against the post, but winger Leandro Andrade brilliantly volleyed the rebound into the goal to equalise. Midfielder Marko Jankovic then sent Chelsea goalkeeper Robert Sanchez the wrong way from the penalty spot to give Qarabag an unlikely lead - the penalty given after Hato handled Andrade's cross. Maresca had already taken off injured midfielder Romeo Lavia after six minutes, replacing him with Moises Caicedo, and made three further changes at half-time, bringing on Garnacho, Enzo Fernandez and Liam Delap for young trio Andrey Santos, Jamie Gittens and Tyrique George. And it was Garnacho who levelled seven minutes into the half, latching on to Delap's long ball, capitalising on a mistake from Kevin Medina and then shooting across goalkeeper Mateusz Kochalski and into the corner.

Bradley was earmarked as Alexander-Arnold's heir apparent from the moment he announced his decision to leave Liverpool for Real Madrid, so once the fates paired the two European superpowers together in the Champions League, the stage was set. And what a contrast it was as the 22-year-old Northern Ireland right-back was the shining symbol of a Liverpool display that harked back to their Premier League title-winning best as Real Madrid were swept aside. Alexander-Arnold, who started on the bench, all the while was left in no doubt how the fans who once sang about 'the Scouser in our team' now regard him. It was a day of unrelenting ill-feeling aimed in Alexander-Arnold's direction, from his mural near Anfield being vandalised with the words "Adios El Rata" before the game to the Anfield anger provoked by what many Liverpool fans regard as his betrayal. Bradley actually fuelled the fury and scorn aimed in Alexander-Arnold's direction with a magnificent display that reduced the formidable Vinicius Jr to a passenger, only able to offer theatrics – poor theatrics at that – in the face of the youngster's physical dominance. Every Bradley tackle was cheered to the echo, every pass greeted with Anfield's approval, his name chanted with gusto, not just for his own efforts but as a voluble reminder to Alexander-Arnold that there was a new kid in town, that he was now firmly a figure from the past. Bradley, unsurprisingly, even won the admiration of head coach Arne Slot. "Conor Bradley was outstanding," he said. "To be up against Vinicius so many times one against one is not for everyone, but he was outstanding."

The German side made it 16 successive wins in all competitions, including four out of four in the Champions League to top the league phase table. Diaz had a mixed night, scoring twice to put Bayern in control before being sent off on the stroke of half-time following a rash challenge from behind on Achraf Hakimi. The Moroccan full-back was in tears as he was helped off with a serious-looking ankle injury, and the AFCON tournament held in his homeland in December. Hakimi left the stadium on crutches, wearing a protective boot and PSG captain Marquinhos said: "We have to wait for the tests, they've done some minor tests." In a chaotic first half at Parc des Princes, Vincent Kompany's side showed a bravery and willingness to press high up the field, which paid dividends when Diaz hit the opener in the fourth minute. Ousmane Dembele thought he had levelled midway through the half with PSG's first shot of the game when he chested in from close range, but his effort was ruled out for offside. The Ballon d'Or winner then left the field with what appeared to be a calf injury moments later. Bayern continued to ask questions of the hosts and were desperately unlucky when Serge Gnabry's shot crashed off one post and on to the other. But Diaz struck his second in the 32nd minute after stealing possession from a slack Marquinhos and coolly finishing. The Colombia winger, though, was dismissed just before the break for his tackle on Hakimi. A yellow card was upgraded to a red following a review from the video assistant referee (VAR), with the Moroccan clearly upset. PSG threw everything at Bayern in the second half, but constantly came up against a brick wall and looked like they weren't going to find a route back into the encounter. But with 16 minutes remaining, substitute Joao Neves stole half a yard of space to hit a bicycle kick beyond Manuel Neuer. That effort reignited PSG and Neuer faced a barrage of shots in the closing stages, making several fine saves to deny Neves, Warren Zaire-Emery and Vitinha, as the holders suffered their first defeat of this season's competition.

It was also an eighth successive clean sheet - matching a club record set back in 1903 over two different seasons. Spaniard Merino was starting up front in place of the injured Viktor Gyokeres and, just as he did last season when he deputised for Kai Havertz, the midfielder showed his versatility to provide a focal point and make a crucial contribution for his team. Arsenal's opening goal came in the 32nd minute when they were awarded a penalty after the video assistant referee (VAR) penalised Lukas Provod for handball after Gabriel flicked on a corner. Captain Bukayo Saka stepped up to drill the ball into the bottom corner. The Gunners weren't at their best in the first half and had to navigate a tricky opening period, with Provod shooting wide for Slavia Prague when well placed. But Mikel Arteta's side started the second half extremely well and doubled their lead seconds after the restart when Merino volleyed Leandro Trossard's cross into the bottom corner. He added his second in the 68th minute when he rose to meet a Declan Rice cross as home keeper Jakub Markovic came out but failed to collect the ball. There was also another piece of history on the night as Max Dowman, at 15 years and 308 days old became the youngest player to feature in the Champions League when he replaced Trossard - breaking the mark set by Youssoufa Moukoko at 16 years and 18 days with Borussia Dortmund in 2020. Slavia Prague thought they had a penalty late on when Provod went down after a high challenge from Ben White, but the decision was overturned by a VAR check once the referee was sent to the monitor. The victory continued Premier League leaders Arsenal's excellent start to the season, with four wins from four matches in the Champions League as they extended their unbeaten run to 13 matches in all competitions.