Derby County boss Paul Warne has been sent a stark warning about a player they are interested in signing this summer. Derby are preparing for a huge summer ahead as they prepare for life in the Championship. Paul Warne needs to bolster most positions in his squad to build a side that is capable of competing in the second tier, all while resolving the futures of his 12 outfield players. Conor Hourihane is one player who is poised to exit Pride Park as his contract expires this summer and League One side Barnsley have reportedly approached the midfielder for a player/coaching role. Having also w…