 Anoratidzwa nguva nenguva mumutambo wake wekutanga, achibuda pabhenji achipesana neReal Madrid neBarcelona apo Athletic yakakunda vese vakwikwidzi kuti vatore 202021 Supercopa de España muna Ndira 2021, asi isina kusarudzwa muchikwata che2020 Copa del Rey Finalyakamiswa kubva mwaka wapfuura mwedzi mitatu gare gare, iyo yakaguma mukukundwa kuReal Sociedad. Mushure mekukora mu quarter-final penalty shootout uye kubatsira chinangwa chakakosha mu semi-fainari ye202021 Copa del Rey, Morcillo akatumidzwa pakati pevamiriri ve2021 yekupedzisira yakaitika musi wa17 Kubvumbi, vhiki mbiri chete mushure mekuburitswa kwekutanga; haana kupinda mumunda uye Athletic yakarasikirwa ne40 kuBarcelona. Akatora chinangwa kekutanga pakupera kwemwedzi iwoyo, achipa chinangwa chekutanga mukukwikwidza 2 × 2 kumba kuReal Valladolid. 