With the January 2013 transfer window now open, a lot of us will be wondering about which deals we will be talking about in February. When it comes to Arsenal they are in an excellent position at the top of the league; its their best chance of winning the Premier League title for a long time. One of the big reasons that they have been able to get into the position that they now find themselves in is due to a big summer deal to secure the signing of Mesut Ozil. It was an excellent piece of business but most people now think that they need a top quality striker to truly take advantage of the situation. In my mind, the obvious choice for the Gunners is Diego Costa who has been linked with a £32 million move to the North London club. The purpose of this slideshow is to look at the reasons why the club should pull out all the stops to get their man