Derby County have been dealt a major transfer blow in pursuit of one of their summer targets. Derby County are poised for a big summer transfer window ahead of their return to the Championship. The summer window officially opens on June 14th and so Paul Warne and his backroom team have less than a month to finalise their summer targets, and get to work on bringing them in. But already there’s players on the move. Teams in the English Football League are wasting no time in readying themselves for the next season and Stoke City look like they’re now closing in on a signing. And it’ll be one that…