He said: “I know Moritz from Switzerland. I hope you can see on the pitch that we'll play well together. I thought he played very well at Old Trafford and again last weekend.
“I hope he can continue like he's doing. Of course he needs also time to settle into this league because the Premier League is totally different from Russia or Switzerland. Everyone needs games to get really in their stride and to improve.
“He's doing very well and I'm really happy to have him in our team."