Rangers are making forays into new transfer markets with Nils Koppen delving deep into South America. Oscar Cortes arrived from Colombia via France, Jefte from Brazil via Cyprus and they haven’t been the only ones mentioned with Damian Garcia and Thomas Galdames also linked. Mexicans haven’t got a great recent history with Rangers, but Philippe Clement might already have had discussions about a midfielder looking to make the leap to Europe. READ MORE: Rangers most expensive signings of all-time including £12m arrival and four DutchmenRangers name-dropped as agent touts Andres MontanoAndres Mon…