I went to the Mexico vs Senegal game on Saturday and I was very impressed by him as well only problem was when he got forward he had a bit of a headless chicken feel about him.
I thought the left winger was very good though. He was fast, good crosser, good passer, could beat a man and also wasn't afraid to come in and use his right foot on occasion. Still looked a bit raw but he's still young. Pape Souare I believe his name was.