Fredy Guarín

Early years and Saint-Étienne

Guarín was born in Puerto Boyacá. In 2005, already a regular for Envigado F.C. and the Colombian under-20 national team, he joined Boca Juniors of the Argentine Primera División, where he spent the first six months in the youth team. Upon completion of his loan the Buenos Aires-based club attempted to sign him on a permanent basis, but he instead chose to go on loan to AS Saint-Étienne in August 2006. Guarín made his debut for the French side scoring twice in a friendly against RCD Espanyol, and gradually fought his way into the starting lineup as the season closed. He first appeared in the Ligue 1 on 14 October 2006 against Olympique Lyonnais, and scored his first goal in a 3–1 victory over Troyes AC. In April 2007, the deal was made permanent for four years.

Porto

On 10 July 2008, Guarín agreed a four-year contract with Primeira Liga club FC Porto for an undisclosed fee. Portuguese under-21 international Paulo Machado went the opposite direction, on loan. During his spell he was used mainly as a substitute, but managed to appear regularly; arguably, his most important goal came on 16 May 2010 as the team renewed their Taça de Portugal title, defeating G.D. Chaves 2–1. In 2010–11, even after the departure of Raul Meireles to Liverpool, Guarín initially struggled to make Porto's starting XI. He was, however, a very important midfield element for the eventual national champions, playing 43 official games and scoring ten goals,…

On 24 May 2006, Guarín made his international debut for Colombia, in a pre-World Cup friendly against Ecuador. He represented the nation at the 2005 CONCACAF Gold Cup and the 2011 Copa América. Guarín was selected by José Pekerman for his 2014 World Cup squad. He played his first game in the tournament on 24 June after the national team had already won its first two group matches, featuring the full 90 minutes in a 4–1 win against Japan which was also his 49th cap; he earned his 50th four days later, coming on as a late substitute to help oust Uruguay 2–0 in the round of 16. On 10 May 2015, whilst at the service of Inter, Guarín suffered a muscular injury to his right leg, being ruled out of the Copa América.

Guarín was primarily an attacking midfielder who could also play in the centre, in a holding role or on the right flank. He was capable of shooting from long-range with both feet, and of acting as a playmaker in midfield. In 2013, Guarín's Inter manager Andrea Stramaccioni described him as "...an extraordinary player who combines physicality with technique in an incredible way. He is also an important element in the locker room."

During an interview in May 2024, Guarín admitted that he struggled with alcoholism.