The revelations from Football Leaks through media outlets including Spain's El Mundo and Germany's Der Spiegel have continued to provide intriguing information about players' agreements when signing with a football club. On Wednesday, a further ten contract "secrets" were released including stars across Europe.

50,000 euros for a sticker card

Barcelona's Brazilian star Neymar has an agreement in place that means he recives 50,000 euros for his signatures appearance on Panini stickers. This works out at 77 euros per card. Menawhile, Real Madrid number seven, Cristiano Ronaldo has a similar deal worth 170,000 euros for 1,000 card signatures.

High confidentiality

Cristiano Ronaldo had a confidentiality clause inserted into the contracts of his employees that work at his home. If they spoke out about any of his private affairs they would have to pay out "a minumum of 300,000 euros".

The "Kun" bonus that keeps paying

Atlético Madrid sold Kun Agüero to Manchester City for 36 million euros. In addition to the fixed transfer value, the variable terms mean that Atlético receives a further 250,000 euros for every 15 goals scored by the Argentine and another 250,000 euros for every 25 games he plays in. Also, if City were to win the Premier League with Kun in their ranks then he Spanish club receives one million euros. They've already banked 2,000,000.

Full screen Agüero. Clive Brunskill (Getty Images)

Integration of Vermaelen

The Belgian defender arrived at FC Barcelona with a payment boost of 100,000 euros per year. The terms of this were to allow the coaching staff to use him in the team as they felt fit, pick him or not, and to represent the club for public appearances. The ex-Gunner also accepted that he would "make the maximum effort to integrate into Catalan society and to learn Catalan".

Vermaelen Barcelona

Defender

Belgium

'Anti-sevillista' boots of Van der Vaart

Real Betis deemed it necessary to stipulate in the contract that the Dutch midfielder could wear "any sport shoes as long as they were not red", the colour that represents the club's rivals Sevilla FC. In agreeing to this Van der Vaart was rewarded with 14 monthly payments of 114,428 euros.

Full screen Van der Vaart. MIGUEL ANGEL MORENATTI (DIARIO AS)

Lavezzi: 57 euros per minute

When he signed for Chinese outfit Hebei Fortune, Ezequiel Lavezzi received $56.7 million (52 million euros) over two years. In case that wasn't enough the club added on two furnished houses, two cars, a cook and a driver.

Lavezzi Shanghai Shenhua

Forward

Argentina

Lloris, £3,500 for a loss

The French goalkeeper, Hugo Lloris agreed with new club Tottenham that he would get bonus payements of £7,000 every time he started for the club and £8,000 for each victory. But, if the team was to draw or lose then he would lose £3,500. How very decent of him.

Lloris Tottenham

Goalkeeper

France

Thiago debt management

When he left Milan for PSG in 2012, Thiago Silva made an agreement with the Parisian club that they would pay off the debts he had with the Italian Treasury. At the time the Brazilian had around 2.5 million euros to be picked up.

Full screen Thiago Silva. IAN LANGSDON (EFE)

Balotelli behaviour

In addition to the normal bonuses afforded to most strikers - goal scoring for example - Liverpool also offered Mario Balotelli a good behaviour clause which was accepted. The aim of this was to ensure that the Italian, known for his creative antics, portrayed an exemplary fashion on the field including, "not being sent off more than three times" and "not spitting on an opponent." If Super Mario could abide by this he'd receive an extra million.

Balotelli Brescia

Forward

Italy

Advertising Agger

When Liverpool sold the popular defender back to Brondby for three million in 2014, the agreement included was that the Danish club would have to hang a publicity poster for the company Kloagger (the group that represents the club) at each home game.