Arsenal midfielder Jack Wilshere was caught on camera giving the middle finger during his side's 6-3 loss at the Etihad, according to reports.
According to the Mirror, the reaction came after the midfielder thought he had won a corner, only for a goal kick to be awarded to Manchester City by the referee.
Television cameras picked up Wishere's inappropriate salute allowing for football fans all around the world to see, the report said.
Wilshere appears to flip the bird across the pitch towards an area of Manchester City fans, who were jeering the player for his protests to the linesman, the report added.
It wasn't the only controversial incident involving Arsenal players as Mesut Ozil was also given a dressing down by team-mate Per Mertesacker after failing to applaud the travelling Gunners fans, the report further said.
Arsenal's lead at the top of the table has now been cut to two points, after their 6-3 drubbing at the hands of Manchester City, and Chelsea's 2-1 win over Crystal Palace, the report mentioned.
