 On 14 May 2019, Larrazabal agreed to a new two-year deal with the "Lions", being definitely promoted to the main squad.He made his first team – and La Liga – debut on 24 August, coming on as a substitute for Óscar de Marcos in a 1–1 draw away to Getafe CF.Larrazabal made his debut for the unofficial Basque Country national team in May 2019, in a 0–0 draw away to Panama for which a small, youthful and inexperienced squad was selected.