No， Cristiano Ronaldo and Ronaldinho are not the same person.
Cristiano Ronaldo， or CR7， is a Portuguese footballer who currently plays for Italian club Juventus in Serie A and the Portugal national team. He is widely considered to be one of the greatest players of all time. Ronaldo began his career with Sporting CP in Portugal， before moving to Manchester United in 2003. He then transferred to Real Madrid in 2009， where he won four Champions League titles， two La Liga titles， and two Copa del Rey titles.
Ronaldinho， on the other hand， is a Brazilian footballer who played for Paris Saint-Germain， Barcelona， Milan， and the Brazil national team. He is widely considered to be one of the greatest players of his generation and is known for his creativity， skill， and trickery. He began his career with Gremio in Brazil， before moving to Paris Saint-Germain in 2001. He then transferred to Barcelona in 2003， where he won two La Liga titles and the Champions League.
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