Early UCL nerves? BVB implode against relegation battling Mainz 👀 | OneFootball

Borussia Dortmund made the trip to face relegation battling Mainz on Saturday and have imploded in the first half.

A stunning three goals in 23 minutes ripped the visitors apart and have Mainz in dreamland. It could've been more, too.

An unmarked Leandro Barreiro struck from the top of the box before a huge error from Alexander Meyer gifted the hosts another.

The goalkeeper kicked the ball right to Lee Jae-sung who stabbed home a second before securing a brace when he strolled into box for a third.

Dortmund have a key names on the bench (including Emre Can, Jadon Sancho, and Julian Brandt) after making 10 changes from their clash against Paris Saint-Germain.

Still, this result could play a big role on the squad mentally ahead of the Champions League final.

Meanwhile for Mainz their three goals from three shots on target is a massive achievement as they hope to stay in the top flight.

Additionally, the host team were the ones who stopped Dortmund from winning the league last season.

Real Madrid will be loving this!