Ustari playing for Atlas in 2017
|Full name||Óscar Alfredo Ustari|
|Date of birth||3 July 1986|
|Place of birth||América, Argentina|
|Height||1.84 m (6 ft 0 in)|
|2014–2015||Newell's Old Boys||36||(0)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 29 July 2019|
Born in América, Buenos Aires Province, Ustari arrived in Club Atlético Independiente's youth system at the age of 14. The untimely deaths of Emiliano Molina and Lucas Molina – both playing in his position – propelled him to the first team sooner than expected, and he made his Primera División debut on 5 October 2005 in a 2–0 win against Newell's Old Boys, remaining first-choice with the Avellaneda side in the following tournaments, under both Jorge Burruchaga and Miguel Ángel Santoro (both former players with the club, the latter also a goalkeeper).
On 10 June 2007, Ustari scored from a penalty kick against Quilmes Atlético Club, also leaving the pitch injured and going on to miss the year's Copa América. One month later, he signed for Getafe CF in Spain for €4 million, teaming up with compatriot and goalkeeper Roberto Abbondanzieri; his official debut came on 26 September 2007, in a 1–2 La Liga loss at Valencia CF.
Ustari struggled during his spell with the Madrid club, due to inconsistent performances and several injury problems. On 17 July 2012, after a 14-month lay-off due to the latter, he terminated his contract which still had another year running.
On 21 January 2014, after only three Copa del Rey matches to his credit, Ustari was released by the Andalusians and signed a six-month contract with Sunderland. He made his debut for his new team four days later, keeping a clean sheet in a 1–0 home win against Kidderminster Harriers for the fourth round of the FA Cup; he was also in goal in the following game in the tournament, and the result was the same against Southampton, and was an unused substitute on 2 March in the final loss to Manchester City at Wembley Stadium.
On 6 July 2014, Ustari returned to his country again to play for Newell's Old Boys, penning a one-and-a-half year deal. On 16 December of the following year, he switched to the Mexican Liga MX after signing with Club Atlas; On 2 November 2017, in the dying minutes of the 1–1 home draw to Tigres UANL while at the service of the latter club, he suffered an horrific injury to his left knee after kicking a long ball forward, going on to be sidelined for several months.
Ustari played all the matches for the Argentina under-20 team that won the 2005 FIFA World Youth Championship in the Netherlands. On 15 May 2006, he was named by senior side coach José Pekerman – also his manager at the former – for the 2006 FIFA World Cup alongside future Getafe teammate Abbondanzieri, being an unused squad member.
Ustari also started the victorious campaign of the Olympic team at the 2008 Summer Olympics in Beijing, but suffered a severe foot injury in the quarter-finals against Holland, being sidelined for eight months.
- Con las manos bien puestas (With a good set of hands); Clarín, 18 June 2005 (in Spanish)
- "Independiente aplastó a Quilmes con un gol de Ustari" [Independiente crushed Quilmes with goal from Ustari] (in Spanish). Clarín. 10 June 2007. Retrieved 19 October 2017.
- Getafe add Ustari; Sky Sports, 29 July 2007
- "El Valencia, suma y sigue" [Valencia, and counting] (in Spanish). El Diario Montañés. 27 September 2007. Retrieved 19 October 2017.
- Ustari out for eight months with horror injury; Goal, 17 August 2008
- Oscar Ustari injured, Ezequiel Lavezzi suspended; Mundo Albiceleste, 14 January 2011
- Ustari se desvincula del Getafe (Ustari cuts ties with Getafe); Getafe CF, 17 July 2012 (in Spanish)
- Óscar Ustari: En Boca Juniors volví a sentirme futbolista (Óscar Ustari: In Boca Juniors i felt a footballer again); Goal, 14 August 2012 (in Spanish)
- El Almería cierra el fichaje del portero Oscar Ustari (Almería complete signing of goalkeeper Oscar Ustari); UD Almería, 18 July 2013 (in Spanish)
- Transfer window: Goalkeeper Oscar Ustari joins Sunderland; BBC Sport, 21 January 2014
- "Sunderland 1–0 Kidderminster". BBC Sport. 25 January 2014. Retrieved 16 February 2014.
- "Sunderland 1–0 Southampton". BBC Sport. 15 February 2014. Retrieved 16 February 2014.
- McNulty, Phil (2 March 2014). "Man City 3–1 Sunderland". BBC Sport. Retrieved 12 September 2014.
- "Oscar Ustari, nuevo jugador de Newell's" [Oscar Ustari, new player of Newell's] (in Spanish). Newell's Old Boys. 6 July 2014. Retrieved 8 July 2014.
- "Oscar Ustari dejó Newell's por el Atlas de México" [Oscar Ustari left Newell's for Mexico's Atlas] (in Spanish). ESPN FC. 16 December 2015. Retrieved 21 January 2018.
- "La impresionante lesión del arquero Óscar Ustari" [The impressive injury of goalie Óscar Ustari] (in Spanish). El Colombiano. 4 November 2017. Retrieved 21 January 2018.
- "Oscar Ustari's knee surgery was successful". Vamos Argentina. 4 November 2017. Retrieved 16 March 2018.
- "El calvario de Ustari llega a su fin: ficha por Liverpool de Montevideo" [Ustari's ordeal reaches the end: signs for Liverpool de Montevideo] (in Spanish). Be Soccer. 4 July 2019. Retrieved 7 August 2019.
- Óscar Ustari – FIFA competition record
- Ustari faces lengthy lay-off; Sky Sports, 17 August 2008
- "Giusti: "La gente me identifica con Independiente y la Selección"" [Giusti: “People identify me with Independiente and the national team”] (in Spanish). La Caldera del Diablo. June 2018. Retrieved 7 August 2019.