Tomás Cuello

Atlético Tucumán

Cuello appeared on the bench for Atlético Tucumán for the first time in a Copa Libertadores match against Jorge Wilstermann on 11 April 2017. He made his professional debut five days later on 16 April in an Argentine Primera División game versus San Lorenzo. By doing so, he became the first player born in the 2000s to play in Argentina's top-flight. Cuello made 20 appearances for the team from 2017 to 2020.

Red Bull Bragantino (loan)

Cuello departed on loan to Red Bull Bragantino in February 2020. He made his debut during a 1–1 draw at the Maracanã against Flamengo on 15 October 2020. Cuello scored his first senior goal in a Copa do Brasil first round 3–2 victory away to Mirassol, netting a stoppage time winner at the Estádio Kléber Andrade on 18 March 2021.

Athletico Paranaense

On 24 February 2022, Cuello signed a four-year contract with Athletico Paranaense. He completed the milestone of a hundred appearances for the club on 25 November 2023, in a 0–0 league draw with Vasco da Gama. In 2023, Cuello made 55 appearances, 33 of which as a starter; he scored two goals and contributed eight assists, playing as a winger in a slightly more defensive role in a formation with three defenders.

Atlético Mineiro

On 30 January 2025, Cuello joined Atlético Mineiro on a four-year deal.

In February 2017, Cuello was called up by the Argentina U17s for their pre-2017 South American Under-17 Football Championship training camp. He was selected for U20 training in September and October 2017. In February 2018, Cuello was called up to train with the U19 team.

As of 15 December 2025.

Athletico Paranaense

Campeonato Paranaense: 2023, 2024 Atlético Mineiro

Campeonato Mineiro: 2025 Individual

Campeonato Mineiro Team of the Year: 2025