Granit Xhaka says players and fans need to treat each other with more "honesty and respect" after admitting he was close to quitting Arsenal because of the "pure hate" he received.
"When I close my eyes now, I can still see their faces. I can see their anger," he told the Players' Tribune.
"The passports were out. I was done with Arsenal. Finished."
The incident occurred when Xhaka was jeered by his own fans as he was substituted during a Premier League match against Crystal Palace at Emirates Stadium.
Xhaka reacted by waving and cupping his ear sarcastically to the home support, exchanging words before taking off his shirt and disappearing down the tunnel.