In an ideal world, Abdallah Sima would’ve kicked off pre-season training with the rest of the Rangers squad. The Senegalese attacker, 23, even shared an Instagram update as if he was pining for the grass at Auchenhowie as the club’s team got back to work this week. But such is the way of things in football, the Brighton loanee has had to contend with the reality that he is technically not a Rangers player. Abdallah Sima might want a return to Rangers, heck, Rangers might even want to sign him, but you and I both know it’s never as easy as that. Now, a potentially key domino could be about to f…