Díaz started his career in the youth system of Vélez Sarsfield, prior to having a stint with Santamarina.[3][4] Díaz began his senior career with Jorge Newbery de Lobería in Liga Necochense, before signing for Primera B Metropolitana's UAI Urquiza on 11 August 2016.[3] He scored on his professional debut on 26 August against San Telmo, which was followed by another goal in his next appearance versus Almirante Brown.[2] Díaz finished the 2016–17 campaign with eight goals.[2] He netted fifteen times in his second season, with the goals being spread across fourteen fixtures; his only brace came in May 2018 against Estudiantes.[2][1]
On 30 June 2018, Díaz completed a move to Ferro Carril Oeste of Primera B Nacional.[2] Six goals followed across his opening twelve appearances, with the forward concluding the campaign with fourteen goals.[2]