Sergio Aguero

Ages 9 to 12 yearsAlways a precocious talent, Sergio Aguero has more than fulfilled his potential to join the ranks of Argentina's greatest footballersAfter making his debut in the Argentine First Division at the age of 15, Aguero's sharp, intelligent play at Independiente and Atletico Madrid made it clear that he was a world-class player in the making. Since arriving at Manchester City in 2011, he has scored over 100 goals for the club and become a firm favourite at the Etihad Stadium and beyond. His last-gasp goal against QPR to win the League for City in 2012 was voted as one of the Premier League's greatest ever moments in a Sky Sports poll in 2015. The shirt he wears bearing his nickname `Kun' is in the top 10 best-selling Premiership player kits, and the global popularity of Manchester City has made him one of the game's best-known players worldwide. Tom Oldfield is a freelance sports writer and the author of biographies on Cristiano Ronaldo, Arsene Wenger and Rafael Nadal. Matt Oldfield is an accomplished writer and the editor-in-chief of football review site Of Pitch and Page.