Sergio Leonel Agüero del Castillo (born 2 June 1988), also known as Kun Agüero, is an Argentine professional footballer who plays as a striker for La Liga club Barcelona and the Argentina national team. He wears "Kun" on his shirt, a childhood nickname based on the title character from the cartoon Kum-Kum. He is considered one of the best strikers of his generation and one of the best players in the history of the Premier League, during his decade-long association with Manchester City.