What mistakes did he make?
I didn't want to post anything negative on the kid, but I watched it through again (without the adrenaline!), and he had a few bloopers.
1. Mirallas was his man on the back stick for their first. He was caught ball-watching and lost a yard - it was enough. However, as mistakes go, this was a small one and one i've seen a lot more accomplished defenders make.
2. He was skinned on at least 2 separate occasions (Mirallas and Barkley), I think 3, but I couldn't quite see who it was skinned in the last few seconds by Coleman and then a weak challenge on Lukaku - one of them i'm sure was him.
3. Poor positioning/reading of the game as the player back from our corners. You may have noticed a couple of OUR corners resulted in massive chances for them. The first Deulofeu was sent clean through when Flanno should've had the run covered, and then the 4 on 2 (the one Lukaku facked up) he should've funneled back but got caught up field when bypassed.
However, having said all that, he also had loads of positives. His second half performance was very good. He got the better of Deulofeu in a couple of 1-on-1's and broke with speed, skill and composure. If he can get to that level consistently, we have a very solid potential full-back on our hands.
