Didn't see enough of him today to really have an opinion on his performance.
However, thinking about it, I really liked that he was straight up to Mourinho to volunteer for the pens afterward. And that he took it as expertly as he did. Him, Dier, Kane, Lamela, Lucas - you can tell who the determined, driven types in that dressing room are by the folks who stepped up to take them. And the thing is, unlike the other four, he's new to the side, so it took courage to step forward with the rest of them.
The thing is, a lot of these blokes who shout and point a lot often do it to hide their own consistencies and mask their own insecurities, on and off the field. So you're never sure when someone's a genuine leader, and when they're just posturing.
Credit to him for stepping up - says good things about his meteorology and willingness to lead by example.
My early impressions of the guy are that he's not poor, but not great either - just sort of there. But, more than anything else, we don't need skill - we have skill by the bucketload at the moment. We need balls, and a willingness to stand up and be counted, a refusal to hide.
If he brings that, he will have justified his transfer fee ten times over.