Arsene Wenger has confirmed that he will look to add a defender to Arsenal's squad in the upcoming January transfer window, but he warned that movement of players will be limited next month.
"If everybody is fit and available, we don't need to go on the transfer market, but we have to consider that Koscielny could be a question mark with his fitness, so we have to go out on the transfer market, yes," he said.
"There will be very little activity because all the big clubs want to keep their players. It will be as usual -- quiet in the first three weeks and then frenetic in the last three or four days. Usually, the transfer market in January is not very active."