Very composed defender for such a young age. To play well under 2 high pressure situations against Milan says a lot and there's no doubt that he has a big future if he continues his progress.
My only worry would be that Celtic have 6 good centre halves when all fit and there's not much to seperate most of them. I was disappointed when Strachan went and got Pressley because I felt that was the perfect oportunity to go with O'Dea after his early promise. Still he's played a lot more games this season than he would have imagined so it bodes well.