The ESPN FC crew discuss the link of Riyad Mahrez to Arsenal and whether or not it is the right move for the Gunners. Arsenal could be facing a defensive crisis before the Premier League season even starts, ramping up the urgency for manager Arsene Wenger to sign an experienced centre-back in the transfer window. Per Mertesacker sustained a knee injury that has ruled him out of this week's preseason trip to the United States, with reports claiming that the German could be out for up to five months. But while the club has yet to reveal the extent of the injury, fellow centre-back Gabriel Paulista also stayed home...