Swansea City boss Paul Clement is happy seeing Mesut Ozil star for Arsenal.
The pair worked together at Real Madrid.
Clement said: "I coached Ozil at Madrid and he is really good. It's a classic one of a foreign player coming to the Premier League and taking a bit of time to adapt as the Spanish league is very different.
"It's a bit lower in tempo and more technical, maybe a little bit more tactical, whereas the Premier League is full throttle for 90 minutes.
"It took him a little bit of time to adapt but he is a wonderful player and a good guy."