(From left) Bayern Munich's Canadian midfielder #19 Alphonso Davies, Frankfurt's German midfielder #27 Mario Goetze and Bayern Munich's German midfielder #08 Leon Goretzka vie for the ball during the German first division Bundesliga football match between Eintracht Frankfurt and FC Bayern Munich in Frankfurt, western Germany on Dec 9, 2023. (PHOTO / AFP)

FRANKFURT - Eintracht Frankfurt pulverised Bayern Munich 5-1 with a three-goal first-half performance on Saturday to snap the champions' unbeaten run in the Bundesliga this season.

In an explosive first half, Eintracht overran Bayern and exposed their error-prone backline, scoring three times in 24 minutes.

The Bavarians, who did not play last week after their league match against Union Berlin was postponed due to snow, looked far from fresh and were in disarray, with coach Thomas Tuchel unusually substituting both his fullbacks at halftime.

"We are frustrated and disappointed with our first defeat. We underestimated a lot of those half chances," Tuchel told a press conference. "Those half chances led to a lot of goals today. We did not do anything we had set out to do."

"We were lacking intensity after not having played last week. It did not seem so in training but it certainly looked that way today. The individual mistakes are too many and glaring," he said.

"I have no real explanation for those individual mistakes. We cannot keep playing at this level because we just allow too many chances."

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Frankfurt's Willian Pacho (right) and Munich's Harry Kane fight for the ball during the German Bundesliga soccer match between Eintracht Frankfurt and Bayern Munich at Deutsche Bank Park in Frankfurt, Germany, on Dec 9, 2023. (PHOTO / AP)

Omar Marmoush opened the hosts' account in the 12th minute, drilling in on the rebound after Fares Chaibi had hit the crossbar following a miskick from Bayern's Noussair Mazraoui.

After yet more slapdash defending from Bayern, Eric Dina Ebimbe doubled their lead in the 31st and Hugo Larsson made it 3-0 five minutes later, benefiting from a Joshua Kimmich error.

Kimmich made amends just before the break with a powerful shot from 20 metres out to cut the deficit but it did not stop the home side.

Eintracht put the ball in the net again, five minutes after the restart, to make it 4-1, outplaying Bayern with another textbook quick break and with Ebimbe beating keeper Manuel Neuer for his second goal of the afternoon.

Ansgar Knauff slotted in to make it 5-1 on the hour as Frankfurt became the first team in 48 years to score five goals in one hour against Bayern in the Bundesliga, since their own 6-0 win in 1975.

Bayern, with a game in hand, remain in second place on 32 points, with leaders Bayer Leverkusen, on 35, travelling to third-placed VfB Stuttgart, who have 30 points, on Sunday.

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The league stops on Dec 20 for the winter break and resumes on Jan 12.