He's not had a great season, but that's down to the current mess at the club, rather than questioning his abilities. It wasn't that long ago he was being touted as one of the best centre backs around. He's been one of our most consistent performers over the last 6/7 seasons. But let's face it, right now, there's very few within the team right now that can hold their head up high. And that's just an unfortunate state we're in right now.
I really would like to see us put Per back alongside Kos. They worked well as a partnership, and Mustafi just hasn't been the same since his return from injury. I have no idea why Arsene continues to persist with this, when clearly it's no longer working for a good while.