Previtali got his career underway in the ranks of Atlanta of Primera B Metropolitana.[3] He appeared off the bench twice in the 2016 season, prior to making his first start on 22 October 2016 versus Platense.[3] After fifty-eight appearances in four seasons in the third tier, Previtali netted his first goal in a 3–1 victory over Justo José de Urquiza in November 2018.[3][4][5] The club won promotion to Primera B Nacional at the end of that season, with Previtali subsequently appearing thirty times in that division; and scoring once, versus Deportivo Morón.[3]