Cristiano ronaldo heaped praise on paris saint germains kylian mbappe

I think there may be some confusion here!

Cristiano Ronaldo has never played for Paris Saint-Germain (PSG), and therefore, he has not had the opportunity to heap praise on Kylian Mbappé, who is a player for PSG.

However, it's possible that you may be thinking of another player or a different context. If you could provide more information or clarify what you're referring to, I'd be happy to try and help!