Derby County appear to have made a new defender their main priority today. The Rams have already been linked with free-agent Liam Cooper, while they are one of a number of clubs ‘exploring’ a loan deal for Leicester City’s Ben Nelson. Derby County have already signed ten new players following their promotion, but are yet to snap up a single defender. There has been a huge focus on bolstering their midfield following a number of key departures, bringing in the likes of David Ozoh, Ben Osborn and Kenzo Goudmijn. Despite the addition of five new midfielders, Derby have recently been linked with a…