Pavard, maybe. In the first game against Australia, I was asking why Sidibe wasn't playing, and so were the commentators, but he went on to be pure class for the French.
I still don't know if Maguire is a great defender, in terms of tackling/marking etc. but his heading is such a tool. He was a huge part in England's success from set-pieces.
Subasic as well. He's top class.
Quintero, Pavard, Theo Hernandez and Golovin obviously, but also player like Chadli and Maguire which I didn't expect much from and were instrumental to give their team the edge at important time. What about you, which player were some of the biggest revelation in this WC?