Arsenal were not planning on making any major additions to the squad in January but coach Mikel Arteta says the recent injury to centre-back Calum Chambers has changed their approach, reports Sky Sports.

"We are going to be in the market to see options that can strengthen the team. That is our obligation and we are going to be working on that. I will give my opinion on things we can improve," he said.

"The bad injury for Calum (Chambers) a few days ago, that is going to change our plans at the back. The reality of the moment is that we are not going to do much. I am more concerned about getting people back from injury than signings.

"I want to improve the players that I have here. If something extra comes up in January to improve what we have... let's do it."