Cancelo seems to play best when he has a free role, today he had to play in that right back position and because of the double pivot formation he struggled to get forward, that and the way chelski pressed us in the first half in particular meant that he couldn't bring much to the game, he looked a bit demotivated, maybe as a result of being 'forced' to play in that one position, he did look a bit better later in the game after gundog and foden came on.