Very poor yesterday (and also against Liverpool, but I won't blame him for that particularly). On one hand, you wouldn't expect world-beater performances from a 12m signing these days, but at the same time, a DM's job is quite simple and as he has all the capabilities in my opinion to succeed there, yet he cannot get consistent enough. Part of the problem is, he simply doesn't foul enough. On both occasions when Shaqiri got the better of him quite easily, he could easily just kick him out for a yellow. Both situations weren't even that close to our goal, so a following free kick would've been a smaller issue to solve, then leaving our whole defence wide open.
Not enough tackles, and not enough fouls for a DM. Fernandinho seems at the moment like a better fit for that position, and it's not even his best position.