Juventus superstar Cristiano Ronaldo admits he can't understand how certain players have broken the €100 million transfer mark in recent times.
Ronaldo, 34, has posed the question whether players in the modern era are value for money with ten players, including himself breaking the €100m barrier over the past decade.
The Portugal captain broke the world transfer record in 2009 when he moved from Manchester United to Real Madrid for €94m and arrived as a UEFA Champions League and Ballon d'Or winner.
In the nine years he spent at Real, he scored 450 goals in 438 games for Los Blancos, becoming the club-record goalscorer and won a further four Champions League titles before going for another €100m when he joined Juventus last year.
And he's now come out to question whether deals are now representing value for money with eight players now exceeding his record switch to the Italian champions.
Scroll through the images below to see the most expensive football XI of all-time
"It's difficult to make calculations in modern football," Ronaldo told Portuguese channel TV1. "[Clubs] gamble a lot on potential and the football industry is different.
"Leaving the case of Joao Felix to the side, any player can go for 100 million euros, even without showing anything - there is more money in football.
"A centre back and a goalkeeper can go for 70 or 80 million euros. I don't agree [with it] but it's the world that we live in and you have to respect it."