Mohamed Elneny is currently holding talks with the club after the midfielder posted his support for Palestine.
Arsenal sponsor, the Lavazza Group had asked for an urgent meeting with the club to address the issue.
Tensions continue to escalate between Israel and militant groups in the Gaza region.
Elneny posted on Twitter saying: “My heart my soul, my support for you Palestine.”
His message went out to almost 5m followers but has resulted in a backlash from Arsenal ’s Jewish fans because his post included an image called "Palestine Lives Matter" which featured an outline of Israel filled with pro-Palestine images.
Tal Ofer, who is part of the Board of Deputies of British Jews, sought a response from Arsenal's sponsor.
The Lavazza Group has released a statement saying: “We’ll immediately reach out to Arsenal to remark we are concerned about the club associated with such a message.
“Content of this post is totally not aligned with our company values. Lavazza Group is fully committed against racism and antisemitism.”
Ofer also attempted to contact Adidas but they have not responded whilst also taking aim at Arsenal
He said he was "sad that Arsenal did not want to deal with this more seriously, I would expect better from them than this.”
Ofer called on the FA to suspend the midfielder for his actions.