Following last weekends disappointing home defeat to Newcastle, it appears that Arsenal are looking to strengthen their defence.

The Gunners only signed Laurent Koscielny and Sebastien Squillaci in the summer, to replace William Gallas and Sol Campbell, but it looks like they are already looking to reinforce their defence.

The Gunners' defence has been highlighted as a weak link for the team numerous times during the season, and this had led to Wenger starting to look for potential quick fixes.

The problems relating to Arsenal's defence has been intensified this week as it has become clear that Thomas Vermaelen’s achilles injury has experienced another setback. Meaning that he could require extensive surgery that may unfortunately mean the Belgian international will be side lined for the rest of the season.

This news has led to reports this morning suggesting that Arsenal are once again looking at Borussia Dortmund’s Neven Subotic and Roma’s Phillipe Mexes, who they were previously linked with in the Summer.

At the moment it appears that Mexes is the most likely to move to the Emirates, with his contract running out at Roma in the Summer.

However, Footylatest believe that Subotic will be a more attractive prospect for Arsenal as "the 21 year-old Subotic certainly has the greatest potential and a greater expectation of a profit when sold on later in his career."

Subotic has had an exceptional season so far, helping his team Borussia Dortmund to the top of the Bundesliga. This will mean that any move to Arsenal will cost them dearly.

Although, Arsene Wenger is currently in desperate need of some strength in his back line so he may be willing to pay in order to keep Arsenal's chances of winning a trophy alive.

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