Messi–Ronaldo rivalry - Wikipedia

Cristiano Ronaldo - Wikipedia

5 times Cristiano Ronaldo and Lionel Messi scored in the same game

Messi Is Now the Weak Link in Champions League Rivalry With Ronaldo

Lionel Messi - Wikipedia

Messi vs. Ronaldo: The Greatest Rivalry in Football History (Paperback)

The Messi vs Ronaldo Debate - Barca Blaugranes

Lionel Messi - Wikipedia

Lionel Messi - Wikipedia

Cristiano Ronaldo's former coach explains impact of Lionel Messi rivalry - Mirror Online

Cristiano Ronaldo - Wikipedia

Cristiano Ronaldo v Lionel Messi: The stats behind the GOAT debate

Ribery on losing Ballon d'Or 2013 to Messi-Ronaldo rivalry: 'Biggest injustice of my career' - Football