The 29-year-old cited "racism and disrespect" as a key reason behind his decision to end his worldwide football career having won the World Cup in 2014.
Ozil, who has Turkish roots, had been under fire since posing for a controversial photograph with Turkish President Recep Tayyip Erdogan in May which sparked questions about his loyalty to Germany's squad ahead of the tournament in Russian Federation. Ozil was born in Germany to a Turkish family.
The 36-year-old Czech said: "I'm not in a position to really comment on that, it's a private personal matter for Mesut against the German Federation". So, how will Germany's and Europe's multicultural societies deal with this issue?
"He has experience, he has quality and he has a great mentality and we are going to help him feel good and to show his quality with us".
Arsenal open the new Premier League campaign with a home fixture against champions Manchester City on Aug.12.
"All of us want to help Mesut feel like it is his home here with us, like a family and it is a family for every player".More news: Barcelona seal €41m Malcom deal after hijacking Roma move
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"In the eyes of Grindel and his supporters, I am German when we win, but I am an immigrant when we lose".
Arsenal forward Reiss Nelson and midfielder Alex Iwobi sat alongside Ozil at the fan event in Singapore.
"I prefer to give him normality in the team, he feels good with us".
Goalkeeper Petr Cech, meanwhile, also spoke out in support of his team-mate and said that Ozil would make a fine captain for the club.
"He is a key player for us so obviously he is the main candidate [to become captain]".
He has the support from the team and we hope by the start of the season he will be fit and ready to perform for us'.