Liverpool legend Graeme Souness felt a lack of dedication forced Eden Hazard into retirement this past week.
The former Chelsea captain has retired at the age of 32.
Souness told the Daily Mail: "It's a mystery to football people why Eden Hazard wasn't successful at Real Madrid.
"I know injuries played a part but even his own father said that football wasn't something he went to bed and woke up thinking about.
"There was always a view within football that Hazard didn't live and breathe football and I think that's significant.
"The true greats in football are obsessed with the game."