Dalle Mura was called up to the Fiorentina senior side for the first time when the club travelled to reigning champions Juventus on 2 February 2020, his 18th birthday. He did not feature as Fiorentina fell to a 0–3 defeat. He made his professional debut for Fiorentina as a last-minute substitute in the club's 3–1 victory over SPAL in the Serie A on 2 August 2020.