#2 Lack of decisiveness in front of goal from Liverpool
When Klopp will look back on this game, he would just remember those opportunities that his players missed as you just cannot miss such great opportunities against a side like Barcelona as they will make you pay.
Throughout the match, the Reds had brilliant opportunities to come back into the game but they just weren't clinical. In the first half, Sadio Mane missed an opportunity much similar to the one Suarez put away on the other hand.
In the second half, Liverpool had better opportunities than the first and they just couldn't make their domination count in the first 20 minutes of the second half. Milner found Ter-Stegan on two occasions when he should have found the corner and Salah hit the crossbar when he had an open goal in front of him.
Liverpool should have had at least one goal in the match but that lack of decisiveness cost them in the first leg.