Getting "you can't win anything with kids" vibes from this
What boils my piss most about garbage like this, is that it doesn't acknowledge that Ronaldo is a freak, mentally speaking, he's beyond even Michael Jordan in that sense I think. If Bolt wanted to be running the 100m then he still could be, but he doesn't want it enough. Michael Jordan could have continued playing beyond the 1998 season with the Bulls, but he didn't want it enough (I know there are other factors, but he wouldn't have been without offers to play if he really wanted too)
Ronaldo's drive to be the best, in a sport he loves, for as long as possible is something that hasn't been seen. I certainly can't think of an example within the sport of Football.
It shouldn't come as any surprise that an absolute waster like Merson doesn't get it though.