On 14 September 2018, Rodríguez renewed his contract with the club until 2020.[3] He made his first-team debut the following 2 June, coming on as a second-half substitute for fellow youth graduate Fabio González in a 0–0 home draw against UD Almería in the Segunda División.[4]
On 17 June 2019, Rodríguez was one of the five players from the B-side who were definitely promoted to the main squad.[5] He scored his first professional goal on 20 July of the following year, netting the opener in a 5–1 home routing of Extremadura UD.[6]
Personal life
On 2 August 2022, Kirian announced through a press conference that he was diagnosed with a Hodgkin lymphoma.[7]