By Toby Cudworth Mikel Arteta says Arsenal will be looking to exploit the weaknesses of Chelsea rather than focusing on the specific threat posed by Cole Palmer. Arteta takes his side to west London after suffering two away defeats in the space of four days – firstly at Newcastle United in the Premier League and then against Inter in the Champions League. The Gunners have dropped points in four other Premier League games, leaving their title hopes hanging in the balance as they already trail table-topping Liverpool by seven points – no club has come back from such a margin in over 30 years of …