Copetti joined Atlético de Rafaela's academy during 2012–13.[2] He made the step into senior football in 2016, as he made his debut on 2 June in a Copa Argentina match against Ferro Carril Oeste.[3][6] In April 2017, Copetti made his first appearance in the Primera División off the bench against Huracán. Two further appearances - as a starter - followed in Rafaela's relegation season of 2016–17. He scored his first senior goal in a cup victory over Defensores de Belgrano on 24 July 2018. Copetti left the club after the 2020 campaign, which he ended with five goals in nine games; he notably scored twice over Tigre on 7 December 2020.[3]
On 16 February 2021, Copetti was loaned to Primera División side Racing Club; penning terms until the succeeding December, including a purchase option.[7][8][9] He scored on his debut against Aldosivi four days later, prior to netting again in his fourth overall appearance for them on 8 March versus Rosario Central.[3] At the end of the year, Racing made use of the purchase option, with Copetti signing a permanently deal until the end of 2024.[10]
Obviamente, vamos a esperar a ver qué pase con los otros partidos. Sabemos que estamos ahí arriba, estamos todos juntos; que la gente se quede tranquila, nosotros vamos a luchar hasta el final. [...] Sí, vamos a salir campeones.
Translation:
Obviously, we are going to wait and see what happens with the other matches. We know we are up there, we are all together; that people remain calm, we are going to fight until the end. [...] Yes, we are going to be champions.
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