Kevin-Prince Boateng admits he blew a chance to join Real Madrid.
The Eintracht Frankfurt admitted that he didn't work hard enough to fulfil that potential.
"In my opinion, without meaning to come across as arrogant, I could have played for Real Madrid, but I didn't do enough to achieve that," he told Bild.
"However, I have reached a point where I am relaxed and satisfied with my career."