The Swiss international also missed Arsenal’s match against Wolves at the Emirate at the weekend. He is expected to miss the Gunners Europa League clash against Portuguese side Vitoria Guimaraes on Thursday.
Xhaka apologised to the fans in a statement but said his wife and children threatened and insulted. He also confessed to letting his emotion dictate his actions.
“My feeling of not being understood by fans, and repeated abusive comments at matches and in social media over the last weeks and months have me deeply,” Xhaka said.
“People have said things like, ‘We will break your legs’, ‘Kill your wife’ and ‘Wish that your daughter gets cancer’.
“That has stirred me up and I reached boiling point when I felt the rejection in the stadium on Sunday.
“In this situation, I let myself be carried away and reacted in a way that disrespected the group of fans that support our club, our team and myself with positive energy.
“That has not been my intention and I’m sorry if that’s what people thought.”