Must have seen a different game. This was a career changing performance. It was so bad, I wouldn't be surprised this was his last game for United and the dream to go from the youth straight into the first team is gone. He will be hired out and needs to reboot and find his level elsewhere, by playing lots of games, not even in the PL. I doubt he will ever reach the top level of United again though, it was not just a bad game and next time better, he was completely out of his depth, and lacks the awareness on this level of the game moving around him, which is not often fixed by gaining experience. In short, he's not a top player.