Derby County look to have an unearthed a gem in the transfer market this summer. Derby County have so far signed eight new players this summer. And it looks like the Paul Warne is about to welcome a ninth to Pride Park, with Derby County target Jacob Widell Zetterstrom having said his goodbyes to current club Djurgardens. The shot-stopper will be a welcome addition to the side, especially so after the Rams shipped in four goals during their opening day defeat vs Blackburn Rovers. Since, the Rams have got back to winning ways, beating Chesterfield in the Carabao Cup after coming from a goal beh…