#3. Did Phillipe Coutinho deserve a penalty? Oh, and why was he substituted?
On first look, the one controversial decision that the otherwise excellent Martin Atkinson made all night - the penalty claim on Phillipe Coutinho seemed to be a correct one... as Ander Herrera seemed to have nicked the ball off Coutinho's toes.
But on repeated viewing, and in slow motion, it appears that Coutinho was in fact tripped by the Spaniard.... a hard one to catch, and a hard one for Atkinson to get, but it does look like it should have been a penalty.
While that decision was one that could have gone either way, the one that Klopp made to sub off Coutinho was a strange one. Having been invisible in the first half, the Brazilian had come alive in the second and it appeared likely that United could concede everytime he got the ball at his feet... a couple of delectable dinks into runners into the box and a couple of runs that left the men in grey chasing shadows stood out.
As Liverpool entered the final phase of the game, he would have provided for some killer thrust, but inexplicably Klopp disagreed.