Sergio Leonel “Kun” Agüero (born 2 June 1988) is an Argentine professional footballer who plays as a striker for English club Manchester City and the Argentina national team. On 5 July 2003, he became the youngest player to debut in the Argentine Primera División at 15 years and 35 days, breaking the record previously established by Diego Maradona in 1976.
Often considered to be one of the best strikers in the world, Agüero is regarded as an all-out centre forward, but can also play as a second striker off another striker, which he often did at Atlético Madrid with Diego Forlán, due to his passing ability, tactical intelligence, and vision, which made him a capable assist-man. Agüero has a diminutive figure with a stocky build, which has led to comparisons with former Manchester City teammate Carlos Tevez and past strikers such as Romário, Del Piero, and Diego Maradona.
In May 2006, Agüero joined Spanish club Atlético Madrid for a fee reported to be around €23 million, breaking the club’s previous transfer record. He caused controversy early in his Atlético career by using his hands to score the winning goal against Recreativo de Huelva on 14 October 2006, only his second goal for the club, with the first coming in a 4–1 away win against Athletic Bilbao on 17 September. He ended his first season in Madrid with seven goals in all competitions, eased into European football by manager Javier Aguirre, who opted to bring him in and out of the line-up as Atlético finished seventh, enough to qualify for the UEFA Intertoto Cup.
On 23 May 2011, Agüero announced on his official website that he wanted to move from Atlético and formally asked to be released from his contract. Agüero later spoke to ESPN, where he stated that he would “not be returning to Atlético”. On the same day that Agüero officially became a Manchester City player, Atlético hosted a 2011–12 Europa League qualifier against Strømsgodset IF, where a group of Atlético fans brandished “Agüero, We Hope You Die” banners in a reaction to the striker’s £38 million move to City at the Vicente Calderón on 28 July 2011, after he had previously stated his desire to see out his contract with the club just weeks before requesting a transfer. Upon his departure, Atlético used the €45 million from Agüero’s sale to buy Radamel Falcao as his replacement.
On 28 July 2011, Manchester City confirmed that Agüero had signed a five-year contract with the club. The fee was reported to be in the region of £38 million (€45 million). He was given the number 16 shirt for his first season at City and wears the shirt name Kun Agüero.
At international level, Agüero represented the Argentina under-20 team at the FIFA U-20 World Cup in 2005 and in 2007, winning both tournaments. Agüero played at the 2008 Beijing Olympics, scoring two goals in the 3–0 semi-final win against Brazil as Argentina went on to win the gold medal. Agüero was selected to represent Argentina in the 2010 FIFA World Cup, the 2011 Copa América, the 2014 FIFA World Cup, the 2015 Copa América and the 2016 Copa America Centurion.