| Full name | Club Atlético Unión | ||
|---|---|---|---|
| Nicknames | Tatengue[1] El Tate | ||
| Founded | 15 April 1907; 118 years ago (1907-04-15) | ||
| Ground | Estadio 15 de Abril | ||
| Capacity | 29,000[2] | ||
| President | Luis Spahn | ||
| Manager | Leonardo Madelón | ||
| League | Primera División | ||
| 2024 | 9th | ||
| Website | clubaunion.com.ar | ||
Club Atlético Unión (Spanish pronunciation:[ˈkluβaˈtletikowˈnjon]; mostly known asUnión de Santa Fe[uˈnjondesantaˈfe]) is asports club fromSanta Fe, the capital city of theSanta Fe Province, inArgentina. The club was founded on 15 April 1907.[3]Unión is mostly known for itsfootball team and currently plays in theArgentine Primera División.
Other sports practised at the club includebasketball,futsal,gymnastics,field hockey,swimming,karate,rugby union,roller skating, andvolleyball.[4] The basketball team competes inLiga Nacional de Básquet, the top division ofbasketball in Argentina.

The club was established by a group of fourteen former members of Santa Fe Foot-ball Club, on April 13, 1907 after a meeting held in the Baragiola family on Catamarca street. Guillermo Drenner was appointed as president of the institution. Initially the club was named "Club United" after a proposal from founding member Cayetano Bossi, who alleged that the club should represent the friendship ties of the founders. The name changed to "Unión Foot-Ball Club" in 1907, remaining until 1918 when it was translated to "Club Atlético Unión" in Spanish language.
The first shirt worn was white with black collar. In 1907 a meeting was held with the purpose of choosing the club colors. Some of the models proposed were a red, white and black striped, while other members proposed a white and red striped shirt (inspired on legendaryAlumni Athletic Club uniform), which finally won after being voted by the majority.
The first match played by the team was vs a San Carlos Centro on 15 May 1907, won by Unión 4–1. Unión was also a founding member (along with Argentine, Central Santa Fe, Brown, Red Star, Sarmiento, San Justo Football Club y Estudiantes de Comercio) the "Liga Regional Santafesina", where the team won the title four consecutive times. In 1910 the club moved their field to a land on Boulevard Pellegrini and San Jerónimo. In 1911 Unión requested affiliation to "Liga Rosarina de Football" which would allow them to play with stronger teams and more competitive tournaments so teams of Liga Rosarina participated in national cups with teams fromBuenos Aires. The LRF accepted the request in 1912, and Unión debuted there vs.Argentino (3–3 tie). The first win in Liga Rosarina was vsAprendices Rosarinos with the following line-up: José Luis Peíteado; Saúl Galetti, Domingo Pallavidini; José Ayala, Alfredo González, Domingo Gómez; Gregorio Aguirre, Arturo Pérez, Manuel Montenegro, Elías Pieretti, Domiciano Roa.
On 26 November 1966, Unión was promoted to thePrimera División for the first time, after defeatingTalleres (RE) 3–0 and winning the 1966Segunda División title.[3]
Unión's supporters are called "unionistas", "tatengues",[1] while the squad is usually nicknamed "El Tate". The colours of the club consist of red and white vertical stripes.

Managed byJuan Carlos Lorenzo in 1975, Unión made a great campaign in the1975 championship with a group of notable players such as goalkeeperHugo Gatti, midfieldersVictorio Cocco andRubén Suñé and forwardsErnesto Mastrángelo andLeopoldo Luque among others.[5]
In1979 Unión played the final matches of theNacional championship, but lost at the hands ofRiver Plate, because the goal scored by River in the first match (with a final score of 1–1) ended up in an average over Union according to theaway goals rule applied to that tournament.[6]
Amongst the most famous footballers who played for Unión areLeopoldo Luque,World Cup winner with Argentina in 1978, andNery Pumpido, thegoalkeeper of the national team that won theWorld Cup inMexico 1986.[7]
Unión andColón are the two largest football clubs inSanta Fe. TheClásico Santafesino has been played since 1913[8] and is known as one of football's fiercest and most importantrivalries in Argentina. Unión and Colón have played 147 games all time against each other in the Amateur and Professional Era, with Unión winning 48, Colón winning 43, 51 draws and 5 no contest (there are no records for those matches, which took place between 1913 and 1917).[8]
Note: Flags indicate national team as defined underFIFA eligibility rules; some limited exceptions apply. Players may hold more than one non-FIFA nationality.
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Note: Flags indicate national team as defined underFIFA eligibility rules; some limited exceptions apply. Players may hold more than one non-FIFA nationality.
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Note: Flags indicate national team as defined underFIFA eligibility rules; some limited exceptions apply. Players may hold more than one non-FIFA nationality.
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| No. | Player | Goals |
|---|---|---|
| 1 | Francisco Valiente | 129 |
| 2 | Fernando Alí | 85 |
| 3 | Orlando Ruiz | 81 |
| 4 | Carlos Verga | 73 |
| 5 | Mario Gervé | 72 |
| 6 | Rodolfo Milessi | 64 |
| 7 | José Luis Marzo | 63 |
| 8 | Julio Mir | 62 |
| 9 | Carlos Castillo | 60 |
| 10 | Julio Enrique Ávila | 59 |
Top 10 all-time goalscores[10] at clubaunion.com.ar

| No | Player | App. |
|---|---|---|
| 1 | Pablo de las Mercedes Cárdenas | 364 |
| 2 | Fernando Alí | 348 |
| 3 | Mario Eduardo Alberto | 327 |
| 4 | Hugo Ismael López | 326 |
| 5 | Víctor Bottaníz | 313 |
| 6 | Darío Cabrol | 272 |
| 7 | Eduardo Roberto Sánchez | 266 |
| 8 | Ariel José Donnet | 255 |
| 9 | Nereo Fernández | 240 |
| 10 | Carlos Santos Mazzoni | 235 |
Top 10 all-time most appearances[10] at clubaunion.com.ar
| Position | Staff |
|---|---|
| Head coach | |
| Assistant coach | |
| Assistant coach | |
| Goalkeeping coach | |
| Fitness coach | |
| Physiotherapist | |
| Physiotherapist | |
| Team doctor | |
| Team doctor | |
| Team doctor | |
| Nutritionist | |
| Psychologist |
The club hosts other sports such asarchery,basketball,field hockey,gymnastics,martial arts,roller skating,swimming,volleyball, amongst others.[11]
Apart from football,basketball is the foremost sport practiced at the institution, Union's team plays inLiga Nacional de Básquet since 2021, when they won the 2021Liga Argentina title and were promoted to the top league after 34 years.[12]
Carlos Delfino is probably its most recognized former player, butMario Elie a three timeNBA champion (1994, 1995 y 1999), also played briefly for Unión in the Argentine League in 1987.[13]