Already capped by Ecuador at Under-20 level, there is a general expectation that Zambrano can kick on and forge a career at the top level. Brighton, who have nurtured a reputation for spotting young South American talent, are also believed to be keeping tabs on the teenager.
United have a wealth of options in the middle of the park including Sofyan Amrabat, Mason Mount, Christian Eriksen, Casemiro and Scott McTominay. Kobbie Mainoo is beginning to stamp his authority on the first team, with Hannibal Mejbri also showing promise.
