One of the most entertaining football matches ever took place on Tuesday night as Liverpool produced a miraculous comeback win to overturn a 3-0 first leg deficit against Barcelona.

Jurgen Klopp hailed his players for being "f-----g mentality giants", their gritty, dogged character responsible for pulling off the improbable. There was more to it than that of course and on a night where everything went Liverpool's way, Klopp's game plan worked perfectly.

So, where did it go wrong for Barcelona? How did Liverpool get everything so right?

How the teams lined up

Barcelona defend in a 4-4-2, buildup from the back in a 4-3-3, attack with Jordi Alba in a winger's position, Lionel Messi roaming free, Philippe Coutinho moving to a forward position from left midfield and Luis Suarez annoying defenders, looking to make runs behind the back line.

At the Camp Nou Alba was able to run riot on the left wing, and with clever movement from the Barcelona forwards creating space for him to exploit, took full advantage of Liverpool's narrow defensive shape .