I wonder which Ronaldo he meant. I can't quite get over the moody, cheating side of Cristiano Ronaldo to appreciate his abilities. Having a Cristiano Ronaldo as a developer would be a bloody nightmare. It'd be like having a co-worker who turned in some inspired code, but who lied, stole, picked fights and was generally a chore to be around.
I hope he meant Brazil's Ronaldo circa 2002 :)