Very poor, the penalty was a ridiculous challenge that he was never going to win. Seemed more like childish frustration after being caught out. As pointed out, he also misjudged the ball that lead to Zohore's chance late on, had it not been for Smithies, he would have been directly responsible for two opposition goals. Can't see how that can be judged a good performance. They weren't the only instances of shoddy defending either.