Ronaldo has told Chelsea if they can sign Neymar, they will be getting a future World Player of the Year.
Ronaldo played with Neymar for Brazil in his farewell game this week and is well aware of the interest around the Santos star.
Chelsea and Real Madrid are chasing the midfielder and Ronaldo said: "Neymar is a player with immense talent, and has a good margin of improvement ahead him, both physically and technically.
"Neymar for me is the big star of the future."
