I saw Neymar's game against US and he pretty much tore the defense apart, but this is the US defense we're talking about. I don't see him doing the same against big teams in CL because of his style of play and also physique. He can get pushed off the ball so easy and there isn't a lot more for him to grow into, he's a really thin build.
And his attitude is the cherry on top. Little prick.