Bayern Munich caught in a Trapp by delirious Eintracht Frankfurt

As his still quite incredulous teammates celebrated in a line in front of the away end at Allianz Arena, they found the clarity to recognise who deserved the moment. A reluctant Kevin Trapp was shoved towards the celebrating fans by a gaggle of his team but if his beaming grin showed how unexpected a delight this was, it also admitted that there were other reasons to savour Eintracht Frankfurt’s triumph – for the team, and for their goalkeeper individually.

On the other side of it Bayern Munich, having suffered a first defeat of the Julian Nagelsmann reign and having seen a run of 30 undefeated Bundesliga home games come to an end, were pinching themselves too. “I didn’t think the game was greatly different from those of the last few weeks,” suggested Nagelsmann. “The defeat is particularly painful because it was avoidable.”

Related: European roundup: Dortmund climb to second, Juventus edge to derby win

In this game of opposites, Nagelsmann’s visiting counterpart Oliver Glasner was visibly delighted on the back of a first Bundesliga win since he arrived from Wolfsburg, where he had guided his team to Champions League qualification. “We’re not going to Munich for Sunday coffee and cake,” he had insisted before the match, but few paid any real mind to that. Did the coach even really believe it? The last time Eintracht had gone to Bayern and avoided defeat? It was a month under 14 years ago, in November 2007, when a rearguard action straight from Friedhelm Funkel’s playbook earned a goalless draw.

There were, conversely, a few not-so-surprise elements to how Eintracht got there. After Leon Goretzka’s goal appeared to signal the opening of the floodgates, Eintracht hit back less than three minutes later as Martin Hinteregger headed in their only corner of the game – not the first time the Austrian centre-back has made hay in the Bayern penalty area. Then there was the winner, with Filip Kostić scoring from the Filip Kostić spot – wide left of the penalty area from the perspective of Eintracht attacking, almost too acute to get a shot off from until you recall the cleanness with which he drives a shot from there – even if the great Manuel Neuer might wince at the sight of the ball whizzing under his elbow on the TV replays.

In between, one figure stood between Bayern having another afternoon like all the others. “We knew that we needed an outstanding goalkeeper today,” said Glasner, “and we had one.” It was a particularly auspicious day for Trapp to shine. The former Paris Saint-Germain goalkeeper is a totem for the club having returned in 2019, and is the club’s highest-paid player.

He has also had a tough start to the season which could have been much worse – his inexplicable attempt to keep the ball in play at Borussia Dortmund on the opening day gifted Marco Reus an easy finish, only for VAR to spot the ball had gone out, and a fumble of Ondrej Duda’s tame shot almost gave Köln a potential winner in Frankfurt last week, with the cameras again saving the day as Anthony Modeste was pulled up for a tight offside after Florian Kainz finished the rebound. Errors are one thing, but the frequency and range of them, from handling mishaps to clumsy work with the ball at his feet, rung alarm bells.

In midweek Hansi Flick named his Germany squad, and Trapp wasn’t in it. He arrived at Bayern “in search of his lost form,” as Frankfurter Allgemeine’s Jörg Daniels put it. “He is not,” wrote Daniels on Saturday, “an oasis of calm in a team that is in transition and longs for security and stability.” The sense that Trapp should be a beacon during a period in which Eintracht are moving on having lost coach, sporting director (Fredi Bobic) and last season’s top scorer (André Silva) had brought his difficulties starkly into the spotlight.

In front of Flick, who watched on from the stands, Trapp responded in the best possible way. He pulled off a string of saves when his team needed him most, from Leroy Sané, Serge Gnabry, a Robert Lewandowski header from point-blank range and – crucially – tipped over a Goretzka piledriver when the midfielder threatened an equaliser in stoppage time. He could not have done more.

There was a little more to Eintracht’s exploits than an inspired goalkeeper, of course. Glasner had indeed arrived with a plan, to exploit the spaces behind Bayern when they pushed up even more aggressively than they had under Flick at times, which has been a calling card of Nagelsmann’s team in recent weeks (and is still to be perfected). Eintracht were brave when they had the opportunity and in Kostić, who also set up Hinteregger’s goal with a 19th assist this calendar year, they had the quality to take their chance.

Kostić almost joined Lazio this summer, and losing the winger and Silva in the same summer would have been too much. Eintracht must be grateful they held on to him. If Kostić and Trapp are in form, Glasner has something to work with – and knowing how his predecessor Adi Hütter recovered from a tough start, they have reason to be ambitious.

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Talking points

• Leverkusen are now level on points with Bayern after an easy 4-0 win at Arminia Bielefeld on Sunday, carried by a Patrik Schick brace but once again inspired by Florian Wirtz. Gerardo Seaone welcomed “a change of air” for his players as they stop for internationals – ahead of meeting Bayern in the first game after the resumption.

• Dortmund also went into their mini-hibernation with a win, edging Augsburg 2-1 in a game in which Marco Reus became the first player in the club’s history to register 100 goals and 100 assists, setting up Julian Brandt’s winner. The club will be relieved as Erling Haaland announced on Monday that he will not be able to join up with Norway – the Norwegian FA had been pushing to include the striker despite Sebastian Kehl’s insistence that “he can’t train, let alone play at the moment.” Meanwhile Bild claimed on Sunday that Jude Bellingham sitting out England duty to recharge was instigated by the wishes of his parents.

• Leipzig’s 3-0 home win over Bochum involves a lot of partially misleading statistics, taking Jesse Marsch’s team to nine scored, none conceded in two very productive Bundesliga home games. The two were split by a huge midweek setback against Club Brugge, in which their slapdash defending left them with a Champions League mountain to climb. It also took them almost 70 minutes to break their struggling visitors, with substitutes Dominik Szoboszlai (“I want to play all the games,” he told Sky with some irritation) and André Silva combining to break the deadlock before Christopher Nkunku finished Bochum off.

Friday: Cologne 3-1 Fürth. Sat: Dortmund 2-1 Augsburg, Hertha 1-2 Freiburg, Leipzig 3-0 Bochum, Stuttgart 3-1 Hoffenheim, Wolfsburg 1-3 Gladbach. Sun: Arminia 0-4 Leverkusen, Bayern 1-2 Eintracht Frankfurt, Mainz 1-2 Union Berlin.

• Mönchengladbach built on last week’s win over Dortmund with an impressive victory at Wolfsburg, in which the youthful hue of Adi Hütter’s team shone through. The 18-year-old American Joe Scally scored the clincher – which the coach called “symbolic” – to seal at 3-1 win late on.

• More trouble for Hertha, who lost at home to a late Nils Pedersen goal (as substitute, of course) for Freiburg. Only a huge injury list, which includes his son Marton, is saving Pal Dardai as it stands but he may not survive the international break.