After confirming their status as ‘winter champions’ with their 2-1 win against Werder Bremen, Borussia Dortmund have made their title gallop a little less rapid. The 2-1 reverse at Fortuna Dusseldorf looks like a shock from the outside, but a tired BVB side lacking depth due to injuries simply looked tired and out of ideas.

A gifted first goal made it hard for a return from the Schwarzgelben, and a second stunning hit in the second half consigned them to a defeat. A header from Paco Alcacer brought the game back to life, but they couldn’t get back into it. The words of BVB captain Marco Reus prior to the game, then, might ring in the ears of his teammates.

With a big game against Borussia Monchengladbach on Friday – and with just one fit central defender – Dortmund need to avoid dropping their lead to just 3 points with a loss. With a rejuvenated Bayern roaring back into life, too, concentration is key. Reus made that clear, saying when speaking to the official Bundesliga website: “As a footballer, of course you want to win every game,

“Being top halfway through the season is a nice side note, but it doesn’t mean much if you’re not top of the table at the end of the season. We’ll have to wait and see.”

There is much challenge to come for Dortmund, especially with a testing start to 2019. Concentration will be key, then, if they wish to avoid falling away and turning a potential dream into a nightmare.