FC Barcelona superstar Lionel Messi has explained why he believes it is difficult for himself and Real Madrid talisman Cristiano Ronaldo to form a friendship.

Click through the gallery to see images of Messi and Ronaldo's rivarly over the last 10 years!

The two forwards have been compared to one another ever since their early dominance of the Ballon d'Or award, a dominance that has lasted 10 years already.

Messi, who, like Ronaldo, has five Ballon d'Or titles to his name, was recently asked about his relationship with the Portugal international.

"Friendship is something constructed by spending time together," he said, according to Sport.

"We don't have a relationship because we only see each other on prize nights, that's the only time we talk.

"Everything is fine but our lives don't cross paths that often."

Messi: Our Aim Is To Win Everything

While Ronaldo has scored 20 goals across all competitions for Los Blancos so far this season, Messi has hit the back of the net on 27 occasions for the Catalan giants.

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