Arsène Wenger has around £20 million available to him when the transfer window reopens next month and, although he is determined to add a defender, would prefer to recruit a player who can provide short-term cover but also has the potential to develop into a first-team regular. Mings has been watched frequently in recent months and, while he now plays predominantly at left back, he is 6ft 3 ins and regarded as a player who could also progress into a centre-back in the same way as Calum Chambers.