Former Liverpool great, Dietmar Hamann, has revealed why Cristiano Ronaldo is better than Wayne Rooney.

Both players were arguably on par during their time at Manchester United, but while Ronaldo took his career to another level Rooney has stalled somewhat.

Hamann, who won ten trophies with Liverpool including the 2005 Champions League, believes the difference between Rooney and Ronaldo is simply down to the latter’s work ethic.

"You have to live like a top player. If you want to be the best, you have to live like the best,” he told Perform.

"And if you like to party on the weekends and drink beer or a glass of wine too much that could be negative for your performance and I think that's the big difference between Rooney and Cristiano Ronaldo.

"Rooney always knocked on the door to be world class but never did the final step. And Ronaldo

Hamann explains that it's Ronaldo’s dedication to practice and training that has put him way ahead of Rooney.

"He's a real hard worker. The way he shoots his free kicks is the result of years of training. That doesn't come overnight,” he added.

"As I said, often the really talented players tend to do a little bit less because they can get away with it and the others are not as talented as they are.

"But if you have the talent, the morale and if work really hard just then you'll become a Ronaldo or a Messi."

Do you agree that Cristiano Ronaldo has worked harder than Wayne Rooney to be where he is now? Have your say in the comment section below.