Mikel Arteta has singled out one Arsenal player having seen a ‘huge’ change so far this season from them to further secure a ‘really important’ presence at Emirates Stadium. The Gunners continue to enjoy a terrific term but returned to second in the Premier League standings after Liverpool beat Sheffield United this Thursday. Only two points currently split the table-topping Reds from the Gunners through 30 fixtures, with Manchester City in third. Arsenal can continue to keep pressure on Liverpool when they visit Brighton & Hove Albion on Saturday evening. Jurgen Klopp’s Reds are next in actio…