Arsenal now face renewed pressure to secure the future of manager Mikel Arteta. As things stand, Mikel Arteta only has 18-months remaining on his current Arsenal contract. All the indications are that Arsenal want to keep the Spanish coach, and Arteta himself wants to extend his stay at the Emirates Stadium. However, until new terms are signed and sealed, there is little security in the situation. Now, the latest news from Spain will surely cause the Gunners to treat Arteta’s contract situation with greater urgency. Xavi Hernandez has announced that he will be stepping down as Barcelona boss a…