|Full name||Lucas Nicolás Alario|
|Date of birth||8 October 1992|
|Place of birth||Tostado, Argentina|
|Height||1.84 m (6 ft 1⁄2 in)|
* Senior club appearances and goals counted for the domestic league only and correct as of 10 October 2019|
‡ National team caps and goals correct as of 10 October 2019
Born in Tostado, Santa Fe, Alario began his career at Colón in his native province. He made his Argentine Primera División debut on 11 June 2011, as a 59th-minute substitute for Cristian Raúl Ledesma in a 0–1 home defeat to Arsenal. His first goal for the club came on 22 March 2014, a fourth-minute penalty for the only goal of a win against Tigre at the Estadio Brigadier General Estanislao López. On 12 May 2015, he netted twice in a 3–2 away win at Defensa y Justicia for Colón's first away win of the season.
On 26 June 2015, Alario became River Plate's fourth signing of the season, joining the Buenos Aires-based club on a four-year contract for a fee of 2.25 million US Dollars. He made his debut on 11 July, replacing Fernando Cavenaghi for the final 30 minutes of a 1–1 home draw against Temperley. Eleven days later, as a substitute, he equalised for a 1–1 draw away to Paraguay's Club Guaraní in the second leg of the Copa Libertadores semi-finals, converting a pass from Tabaré Viúdez to send River through 3–1 on aggregate to their first such finals since 1996. On 5 August, in the second leg of the final after a goalless first, he finished Leonel Vangioni's cross at the end of the first half to open the scoring as his team won 3–0 against Tigres UANL.
Eighteen days after River won the continental championship, Alario was sent off in a 2–1 domestic loss to Estudiantes de La Plata. His first league goals for the Millonarios came in the form of a hat-trick on 6 September, in a 4–1 win away to Nueva Chicago. On 31 October, as a 55th-minute substitute for Nicolás Bertolo, he scored the only goal in a win at Vélez Sarsfield.
On 16 December, in the semi-finals of the 2015 FIFA Club World Cup in Osaka, Alario headed the only goal to defeat Sanfrecce Hiroshima. Four days later he played the entirety of the final, a 3–0 loss to FC Barcelona.
On August 25, 2016, Alario scores again finishing the game and yet another international title with River Plate in Buenos Aires to take over Recopa Sudamericana 2016. He is rated by many football experts in Argentina as the best striker playing in Argentina.
Alario received his first international call-up for Argentina on 12 August 2016, for matches against Uruguay and Venezuela. Alario had his first appearance on 1 September 2016, coming from the bench replacing Lucas Pratto in the 71st minute during a World Cup Qualifier 2018 match against Uruguay.
- River Plate
- Copa Libertadores: 2015
- Suruga Bank Championship: 2015
- Recopa Sudamericana: 2016
- Copa Argentina: 2016, 2017
- "Arsenal ganó en Santa Fe, se salvó de la Promoción y va por la Copa" [Arsenal won in Santa Fe, avoided relegation and are going for the Copa] (in Spanish). ESPN. 11 June 2015. Retrieved 2 August 2015.
- Bordón, José E. (21 March 2014). "Ante Tigre, Colón volvió al triunfo y se mantiene en lo más alto de la tabla" [Against Tigre, Colón return to winning ways and keep themselves on top of the table]. La Nación (in Spanish). Retrieved 2 August 2015.
- "Defensa y Justicia-Colón cierran en Varela la 12° fecha" [Defensa y Justicia-Colón close the 12th round at Varela] (in Spanish). ESPN. 11 May 2015. Retrieved 2 August 2015.
- "Alario pasó la revisión médica y se convirtió en el cuarto refuerzo" [Alario passes medical and becomes the fourth reinforcement]. Clarín (in Spanish). 26 June 2015. Retrieved 2 August 2015.
- "River sólo empató ante Temperley y su nivel preocupa de cara a la Copa Libertadores" [River only drew against Temperley and their standard is worrying ahead of the Copa Libertadores]. La Nación (in Spanish). 12 July 2015. Retrieved 2 August 2015.
- Vickery, Tim (21 July 2015). "River Plate win Copa Libertadores semi, Guarani exit with heads held high". ESPN. Retrieved 2 August 2015.
- "River Plate win third Copa Libertadores title with victory over Tigres". The Guardian. Reuters. 6 August 2015. Retrieved 6 August 2015.
- Cantore, Alberto (24 August 2015). "La derrota ante Estudiantes dejó a River inquieto y lejos de la cima" [Defeat against Estudiantes leaves River worried and far from the top]. La Nación (in Spanish). Retrieved 30 October 2015.
- "River goleó en Mataderos gracias a un Alario brillante" [River run wild in Mataderos thanks to a brilliant Alario] (in Spanish). Goal.com. 7 September 2015. Retrieved 30 October 2015.
- "Con gol de Alario, River le dio un nuevo golpe a Vélez" [With Alario's goal, River strike a new blow towards Vélez]. La Nación (in Spanish). 31 October 2015. Retrieved 28 November 2015.
- Sharma, Rik (16 December 2015). "River Plate 1-0 Sanfrecce Hiroshima: Lucas Alario scores second-half winner to set up potential Club World Cup final with Barcelona". Daily Mail. Retrieved 16 December 2015.
- "Bayer Leverkusen complete deal for Argentina striker Lucas Alario". Bundesliga. 22 September 2017. Retrieved 31 October 2017.
- "La lista para las Eliminatorias" [The list for the qualification]. Argentine Football Association (in Spanish). 12 August 2016. Retrieved 14 August 2016.
- "2018 FIFA Russia - Matches - Argentina-Uruguay". FIFA. 1 September 2016. Retrieved 1 September 2016.
- Lucas Alario at Soccerway