Rangers started the January transfer window being linked with one South American talent in need of a fresh start, and ended up landing one of his international team-mates instead. But while Oscar Cortes has surely done enough – even in his brief, injury-interrupted time at Ibrox – to suggest that Rangers are right to pursue a permanent deal for the RC Lens loanee, it seems there were few such temptations enticing Standard Liege. Farmed out by Brighton and Hove Albion last summer after falling behind the likes of one-time Gers starlet Billy Gilmour in Roberto de Zerbi’s pecking order, Steven Al…