Rubuta ci gaba ga wannan sakin layi - Martín ya sanya hannu kan kwangila na dindindin a ranar 5 ga Nuwamba 2018, yana aiki daga ranar 1 ga Yuli mai zuwa. A ranar 31 ga Disamba, 2020, an ba shi rance zuwa RC Celta de Vigo don sauran kamfen
tare da zabin saya. Koyaya ba a yi amfani da zaɓin ba kuma ya koma Mainz 05 a ƙarshen kakar.