Borussia Dortmund's hopes of reaching the Champions League quarter-finals are hanging by a thread after their 3-0 defeat to Tottenham Hotspur. 

The Bundesliga leaders threatened early on and were denied by a couple of fine first-half saves from Hugo Lloris. 

However, the Lilywhites were utterly ruthless after the interval, Heung-min Son opening the scoring before late goals from Jan Vertonghen and Fernando Llorente finished off the visitors. 

It was the second time in consecutive games that this inexperienced Dortmund defence has capitulated. 

Last weekend, they threw away a three-goal advantage against Hoffenheim, going to pieces in the final 15 minutes. 

Similarly, at Wembley, a back four with an average age of just 22 could not contain Spurs, despite the  absences of Harry Kane and Dele Alli. 

Of course, Mauricio Pochettino's side deserve full credit for putting on another European 'Glory, Glory' night under the lights. 

Son - so often effective against Dortmund during his Bayer Leverkusen days - continued his rich vein of form. The South Korean has scored in every game since returning from the Asian Cup. 

Vertonghen, too, was outstanding, operating at left-wing-back with Ben Davies and Danny Rose both sidelined. 

A backlash from German media 

However, back in Germany it's BVB's shortcomings, not Tottenham's brilliance, that has proven a talking point. 

The media have been hammering the squad's decision to pay for expensive hair-cuts the evening before kick-off, rather than analysing their opponents. As Bild put it, "this trip had everything - just not football!"

The club will now hold a discussion with the players. 

CEO Hans-Joachim Watzke has spoken out to deflect blame, insisting that his side lost for footballing reasons and not because of a lack of focus off the pitch. 

"It certainly has no influence on a team's performance,” Watzke said, per the same report.

“There are sporting reasons for our defeat, and we need to analyse them.

"It's clear the defeat also leads to a critical media view of the hairdresser's visit. And that's why [sporting director] Michael Zorc and [squad manager] Sebastian Kehl will review this with the players."

Dortmund were initially delayed because Jadon Sancho had forgotten his passport.

The trip was ultimately a disaster from start to finish. Lucian Favre might well find himself in his first mini-crisis.