United have already signed Matheus Cunha and Bryan Mbeumo this summer and Sesko is viewed as a priority over other potential targets, including Aston Villa's Ollie Watkins. Ruben Amorim's side have explored the conditions of a deal to sign the England international but Villa are insistent that he is not for sale. Nevertheless, manager Amorim would rather sign the Englishman, pertalkSPORT.