The world of football transfers is a complex one shrouded in secrecy with Rangers move for Oscar Cortes one that has all the hallmarks of a modern transaction. Having settled in immediately, Gers boss Philippe Clement will be without his star winger for most, if not all of the season due to injury but a permanent deal in the summer shouldn’t be written off just yet. According to Nils Koppen, Rangers have been watching Oscar Cortes for some time but, on this occasion, a simple phone call isn’t how this transfer came about. Rangers move for Oscar Cortes explainedTransferRoom does exactly what it…