Former Liverpool defender Jamie Carragher has now told Arsenal what they must focus on in order to win the Premier League title this season. Arsenal reignited their Premier league title bid with a 3-1 win over Liverpool at the Emirates Stadium on Sunday. That victory took them to within two points of the Merseyside outfit, who currently sit at the top of the Premier League table. However, both Arsenal and Liverpool will be painfully aware of the looming threat that Manchester City pose to their title aspirations. The reigning champions are currently level on points with the Gunners, but Pep Gu…