In February 2017, Luis Ezequiel Unsain left Newell's Old Boys for Defensa y Justicia, the club from Florencio Varela that would spend the following years near the top of Argentine football and competing across South America. Born on 9 March 1995 in the province of Entre Ríos, the goalkeeper arrived with little more than a dozen top-flight appearances behind him and the memory of a serious injury. He stayed six years with the club, won two continental titles and was named in the team of the tournament at the 2020 Copa Sudamericana. He then played three years in Liga MX with Necaxa before returning to Argentina in 2026 to join Talleres de Córdoba.
Early years in Entre Ríos and Rosario
Unsain started out in goal at Unión de Alcaraz, a club in the Paraná Campaña football league in Entre Ríos province. From there he moved to the youth ranks of Newell's Old Boys in Rosario, where he finished his development. Standing 1.88 metres tall, he was already being called up for Argentina's youth teams. Transfer records place his promotion to the Newell's first team in mid-2013, although he had to wait behind more experienced goalkeepers for his chance.
Debut at Newell's and the 2016 injury
He sat on the bench unused seven times during 2015 before making his Primera División debut in August of that year, a 0-0 draw with Temperley under coach Lucas Bernardi. That game earned him the starting spot ahead of Oscar Ustari. On 20 February 2016, in a match against Boca Juniors, he took a knee from Carlos Tévez that left him with a double fracture of the lower jaw and kept him out for months. He finished his spell in Rosario with 16 league appearances.
Six years at Defensa y Justicia
He arrived in Florencio Varela midway through the 2016-17 season and won the starting job in a side that grew into a regular in continental competition. The 2020 season was the most important of his career. Defensa y Justicia reached the final of the 2020 Copa Sudamericana, the first in the tournament's history between two Argentine clubs, and on 23 January 2021 beat Lanús 3-0 at the Estadio Mario Alberto Kempes in Córdoba with Unsain in goal. It was the club's first international trophy, and CONMEBOL picked him in the team of the tournament.
The 2021 Recopa Sudamericana followed, against Copa Libertadores holders Palmeiras. Defensa had lost the first leg, and in the return match, played on 14 April 2021 at the Mané Garrincha stadium in Brasília, they won 2-1 to level the tie at 3-3. In extra time Unsain saved a penalty from Gustavo Gómez, and the trophy was settled in a shootout that the Argentine side won 4-3. His last game for the club was a win over Millonarios in the 2023 Copa Sudamericana. He made 167 Argentine league appearances for Defensa y Justicia.
Youth international career
With Argentina's under-20 side, coached by Humberto Grondona, he was called up for the 2014 L'Alcudia tournament in Spain. Two years later he was named among the reserves for the Olympic squad at the Rio de Janeiro 2016 Games. He never made his debut for the senior national team.
Three years in Liga MX with Necaxa
His move to Mexican side Necaxa was agreed in mid-2023 and registered on 1 July that year. It was a difficult start: in the 2023 Apertura the Aguascalientes club finished bottom of the table. Unsain kept his place as the starter through the 2023-24, 2024-25 and 2025-26 seasons and made 97 Liga MX appearances for the club.
Return to Argentina with Talleres
In July 2026 Necaxa sold him to Talleres de Córdoba, bringing him back to Argentine football three years after he left. The move took him to the same city and the same ground, the Mario Alberto Kempes, where he had won the Copa Sudamericana with Defensa y Justicia in January 2021. He played the 2026 Torneo Clausura with the Córdoba club.
Talleres CórdobaGoalkeeperMarket value €300.0K