While it feels unlikely that Rangers will be the club which wins the race for a midfielder dubbed ‘one of the best in Europe’, it certainly feels like a case of ‘when’ rather than ‘if’ the £13 million-rated playmaker is saying his goodbyes this summer. HITC reported in April that Rangers and Old Firm neighbours Celtic have been alerted to the 23-year-old’s availability. The Premiership giants like what they see, too. Of course they do. Eduard Spertsyan feels like one of those signings – like Jota at Celtic, for instance – capable of strolling into the Scotland and taking the domestic game by s…