India, Sept. 15 -- Barcelona's emphatic 6-0 demolition of Valencia was a display of their attacking prowess. Hansi Flick's takeover has been an embodiment of the stress on an attacking style of play. Yet, beneath the veneer of this brilliance lies a reality that cannot be ignored - such comprehensive wins will be scarce when they face Europe's elite in the Champions League.

While the Catalan giants mesmerise in the La Liga, there are a few structural vulnerabilities that threaten their European aspirations this year.

Barcelona under Hansi Flick are an example of tactical audacity through their aggressive defensive line and suffocating counter-press. The approach puts the opposition on the back foot through territorial dominance, but giv...