ARSENAL boss Arsene Wenger has admitted he is concerned about Granit Xhaka's discipline.
The Swiss international has missed Arsenal's last three domestic games following a red card for a tackle on Mo Barrow during their 3-2 win last month.
It was the 24-year-old's eighth red card for club and country since April 2014.
On Tuesday night, Xhaka scored and was also booked in the dramatic 3-2 win over Ludogorets and Wenger wants the midfielder to add more control to his game.
"I am concerned (with his discipline) yes," he said.
Arsenal fans react to Granit Xhaka's red card
Sat, October 15, 2016Click through the gallery for the best reactions to Granit Xhaka's red card
Click through the gallery for the best reactions to Granit Xhaka's first red card for Arsenal
"Discipline is important and we want to be effective in the situations we face in a derby.
"I think he’s quite a composed and calm guy, sometimes on the field the reaction is a bit impulsive.
"He needs to work on that and his control in the game."