|Full name||Leandro Atilio Romagnoli|
|Date of birth||17 March 1981|
|Place of birth||Buenos Aires, Argentina|
|Height||1.72 m (5 ft 7 1⁄2 in)|
|Playing position||Attacking midfielder|
|2006||→ Sporting CP (loan)||7||(1)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 19 March 2017.
His thin build, short stature and playing style are reminiscent of compatriot Osvaldo Ardiles. What the player – nicknamed Pipi – lacks in physical strength, he makes up for with dribbling ability.
Born in Buenos Aires, Romagnoli made his professional debut on 13 December 1998 at the age of only 17, appearing for San Lorenzo de Almagro against Racing Club de Avellaneda. He went on to become an essential offensive player for the club, appearing in roughly 200 official games and winning three major titles.
In January 2005, Romagnoli signed with Mexico's Tiburones Rojos de Veracruz but, in the same month of the following year, he was on the move again, now to Sporting Clube de Portugal, first on loan. He initially found it difficult to adjust to his new team, but eventually came into his own in the 2006–07 campaign in a superb end-of-season run for both club and player, winning the Portuguese Cup; the move was made permanent in that summer.
Romagnoli was part of the Argentina under-20 team that won the 2001 FIFA World Youth Championship. He made his debut with the full side against the United States on 8 February 2003, playing 12 minutes in a 1–0 friendly win.
- San Lorenzo
- Argentine Primera División: 2001 Clausura, 2013 Inicial
- Copa Libertadores: 2014
- Copa Mercosur: 2001
- Copa Sudamericana: 2002
- Supercopa Argentina: 2015
- FIFA Club World Cup: Runner-up 2014
- Taça de Portugal: 2006–07, 2007–08
- Supertaça Cândido de Oliveira: 2007, 2008
- Taça da Liga: Runner-up 2007–08, 2008–09
- Tom Kundert (3 August 2007). "Player Profile: Romagnoli". PortuGOAL. Retrieved 30 June 2012.
- "Leandro Attilio Romagnoli" (in Spanish). Futbol XXI. Retrieved 6 May 2012.
- "Leandro Romagnoli, un talentoso que ha retornado al barrio de Boedo" [Leandro Romagnoli, talented player returns to Boedo neighbourhood] (in Spanish). 5 de Primera. 18 November 2009. Retrieved 28 August 2012.
- "San Lorenzo: Se abren nuevas espectativas para el retorno de Romagnoli" [San Lorenzo: New expectations on return of Romagnoli] (in Spanish). Goal.com. 26 June 2009. Retrieved 28 July 2012.
- Leandro Romagnoli – FIFA competition record
- Argentina National Team – Bielsa II