Rangers’ player trading model is the talk of the Ibrox steamie this summer. The Gers’ ineffective trading in the transfer market has heaped the pressure on Philippe Clement & co as their much-anticipated rebuild gets underway. Rangers have just seen a number of key assets walk out the door for nothing over the last 24 months as Filip Helander, Ryan Kent, Alfredo Morelos, Kemar Roofe, Borna Barisic and John Lundstram all leave without so much as banking the club a penny. But one player who did recoup Rangers around 100 times what the club paid for him could be on the move to Ligue 1 this summer…