Sergio Aguero
Aguero has netted 152 goals in 227 appearances for Manchester City Getty

Belgian newspaper Le Soir in collaboration with Football Leaks has exposed the contracts of some of the biggest stars of the Premier League. IBTimes UK has a look at some of the most interesting revelations, including how much Manchester City are still paying Atletico Madrid for Sergio Aguero's goals and the exact salaries of Kevin De Bruyne and Chelsea star Eden Hazard.

Sergio Aguero

The whistle-blowing website has revealed that Atletico Madrid received €250.000 (£210,000) from Manchester City every time Sergio Aguero scored 15 goals.

The Argentinian international has netted 152 goals in 227 appearances for Pep Guardiola's side since swapping the Vicente Calderon for the Etihad Stadium in the summer of 2011 in a deal reportedly worth £38m. This means that City would have paid an extra £2.1m to Atletico Madrid on top of the original figure.

Eden Hazard

Chelsea signed Hazard in the summer of 2012 from French club Lille. Reports at the time claimed that the Blues paid £32m for his services but Le Soir now claims that the deal was eventually completed for £28m.

Furthermore, Football Leaks revealed that Hazard got an extra €2.4m bonus for being crowned the Premier League Player of the Year in 2015.

Le Soir added that Hazard pocketed a €4.7m salary (around £90,000-a-week) in his first season at the club and €5m in the second year. Yet, the Belgium star signed a new five-and-a-half-year contract at Chelsea in February 2015 which is said to worth around £200,000-a-week.

Kevin De Bruyne

Manchester City signed De Bruyne from Wolfsburg for a club record £55m in the summer of 2015. However, according to the latest revelations by Football Leaks, his salary is far from the top earners at the Premier League.

Le Soir says that the former Chelsea starlet earns only €7.1m a year at the Etihad Stadium. Nevertheless, the 25-year-old can pocket some bonuses regarding his performances, including €597,000 if Manchester City win the Champions League and €239,000 if he conquers the Ballon D'or.

Toby Alderweireld

Tottenham signed Alderweireld in the summer of 2015 after paying Atletico Madrid around £11.4m – following a big dispute between the Southampton and the La Liga side.

The Belgium international, who had already excelled while on loan at the Saints in the 2014-2015 campaign, was arguably the best centre-back in the Premier League during his debut season at White Hart Lane.

Football Leaks revealed that last summer he was available for only £25.4m due to a release clause inserted in his contract – much less than what Manchester City, Chelsea, Manchester United or Arsenal paid for the likes of John Stones, David Luiz, Eric Bailly and Shkodran Mustafi.

However, Tottenham boss Mauricio Pochettino has since denied those claims, assuring that none of their first-team players has a release clause in his contract.

Divock Origi

Origi moved to Liverpool for a reported £10m fee from Lille after becoming one of the sensations of the World Cup 2014 – but being sent back on loan to his former side to continue his development.

Reports then revealed that other Premier League clubs were also interested in the Belgium starlet but Football Leaks says that Liverpool handed him a signing-on fee of €1.8m to convince him to move to Merseyside.

Meanwhile, Le Soir, which also revealed that Roberto Firmino has an £82m release clause at Liverpool, reports that Origi is earning a weekly salary of €62,411 at Anfield.