Kammala jumla mai zuwa: A ranar 7 ga Oktoba, 2015, Mayoral ya fara bugawa tawagar 'yan kasa da shekaru 21 wasa a wasan neman cancanta a Georgia don gasar zakarun Turai na bana.
Gasar Turai ta 2017; ya maye gurbin Samu Castillejo tare da sa'a daya da aka buga, kuma mintuna tara bayan haka ya sauya taimakon Saúl Ñíguez a cikin nasarar dawowar 5<unk>2. Ya zira kwallaye uku a waje a Arewacin Ireland U21 a cikin Rukunin 2 na kamfen ɗin cancantar U21 na Euro mai zuwa.