Derby County are interested in signing young Sheffield United midfielder Oliver Arblaster on a loan deal until the end of the season. The high-flying Rams are right in the mix for automatic promotion under Paul Warne and are looking to strengthen the ranks in January. And according to The Sun, their search for new players is leading them towards United youngster Arblaster, who has recently returned from being on loan at Port Vale. Arblaster is currently injured though after suffering a bad looking knock to the knee. However, he is expected to be out for just weeks rather than long-term, leavin…