Sergio Agüero

When Atlético signed Sergio Agüero from Independiente in 2006, he was 18 and one of the most talked-about young players in the world. The fee made him the most expensive signing in the club's history at the time, and he was asked to fill the gap left by Fernando Torres, who would leave a year later.

From prodigy to star

Small, quick and strong, with a low centre of gravity and a fierce shot, 'el Kun' improved every season. Alongside Diego Forlán he formed a partnership that terrified defences, and by his final seasons in Madrid he was one of the best forwards in Europe.

The trophies of 2010

Agüero was part of the side that won the UEFA Europa League in Hamburg in 2010, setting up Forlán's goals in the final, and he scored in the UEFA Super Cup win over Inter Milan in Monaco later that year. In 2010–11 he was the team's top scorer and captain on several occasions.

Legacy

He joined Manchester City in 2011 and went on to become one of the Premier League's greatest goalscorers, but supporters remember the teenager who arrived in Madrid and grew up in front of them at the Calderón.