How to distinguish between the two Ronaldos has been a bit of a problem ever since Cristiano Ronaldo burst on to the scene and showed his brilliance.
The Juventus forward was always going to have to go some way to get to the level of his Brazilian namesake but over an incredible career he's done just that.
'Original Ronaldo' and, cruelly, 'Fat Ronaldo' have both been used at times to describe the man who won FIFA's World Player of the Year three times.
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Asked by Fabio Cannavaro on an Instagram Live about being called the 'Real Ronaldo' the 44-year-old said, "For CR7, it must be boring to hear that I am the real Ronaldo.
"People cannot be compared. Cristiano will remain in football history for the goals and for the continuity he has achieved. He will remain one of the best, like Messi."
The Brazilian was named the best in the world before he reached his 21st birthday in 1996 and again a year later. He finished second in 1998 and probably would have won the award that year were it not for his mystery injury on the day of the World Cup final.
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He did eventually start the game, after initially being left off the starting XI when team sheets were handed in, but France, inspired by Zinedine Zidane, were too good for the Selecao and Ronaldo was like a ghost of himself on the pitch.
The 2002 World Cup winner had a very good career but it would have been even better if not for the serious injuries that kept affecting him, especially recurring knee problems.
It's something that Cristiano Ronaldo has been lucky to keep clear of for much of his career as his fitness hasn't even deteriorated too much despite reaching 35 years old.
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The five-time Ballon d'Or winner has scored 37 goals in 46 games for the Old Lady last season as the Old Lady wrapped up their ninth Scudetto in-a-row.
Juve bought the former Manchester United winger to help them win the Champions League though, so his time in Turin may be considered a relative failure unless he manages to secure the side's first European title since 1996.
For that end it was another poor season for the club, as they were knocked out of the last 16 of the competition by Lyon, with the French side being the surprise package and going on to knock out Manchester City in the quarter final.
Ronaldo and Ronaldo will forever be connected by their names.
Featured Image Credit: Instagram/PATopics: Football News, Brazilian football, Serie A, Ronaldo, R9, Juventus, Brazil, Cristiano Ronaldo