Football matches do not get much bigger than the El Clasico.
Barcelona against Real Madrid is one of just a few fixtures that can attract a gigantic global audience from around the world as Spain's heavyweights face off at least twice a season.
For some players, that one fixture alone is enough to entice them to move to La Liga and link up with some of the most talented stars in the sport.
But just in case Cristiano Ronaldo and co. needed any more motivation to win the game, Florentino Perez offered Madrid's players a very tasty bonus to encourage them to beat their fierce rivals.
According to journalist Paco Gonzalez on Spanish radio station Cadena Cope, the Real Madrid president promised each player €150,000 if they were victorious in last April's critical clash, as per Sport.
Los Blancos were in pursuit of Luis Enrique's side for the La Liga title and a loss at the Camp Nou would have extended the gap between the two teams to 13 points and all but rule Madrid out of the title race.
So when they fell behind to Gerard Pique's goal in the second half, it looked like Perez would be keeping his money and Barcelona were about to extend their unbeaten run to 40 matches.
But Karim Benzema's equaliser and an 85th-minute winner from Cristiano Ronaldo earned Zidane an invaluable victory and a tidy financial reward.
As it turned out, it wasn't enough to stop a Lionel Messi-inspired Barca charge to back-to-back title triumphs.
It is believed the promised €150,000 was taken from the pre-agreed bonus on offer if the team had won the Copa del Rey.
However, they had already been disqualified from the competition after the then head coach Rafael Benitez fielded Denis Cheryshev in the fourth round tie with Cadiz, who was ineligible.
Of course, Madrid's stars already earn incredible amounts so it is not clear how much the extra incentive actually made to their performance but as it worked in May, it may well be a trick Perez turns to again if they find themselves in a similarly perilous position this season.