The 19-year-old has shot to fame with his stunning performances for both club and country and is expected to move to one of the top clubs in Europe.
Barcelona and Real Madrid have been the leading contenders for his signature, although Santos have been so far resolute in keeping him at the club.
But Ronaldo believes it's a matter of time before Neymar moves to Europe and it will be a crucial step for him.
"We will see his evolution from the moment he moves to Europe, which will be the most important step in his career," he told Globo.
"He has done everything he can here in Brazil with his talent. I think it would be a shame to limit himself to Brazil only."