Doesn't Ronaldo have some sort of glandular condition, where he has trouble keeping his weight down? I could be wrong, but I thought that was part of the problem during his come back before the previous season. Has he even started running again after this most recent knee injury yet? I'm not surprised in the least that he's a fatty right now. Besides, after the 3 (?!) major knee injuries/surgeries the man has had, if he returns to play at the top level at all it would be a huge accomplishment - a borderline miracle. This is CLEARLY one of the best footballers EVER - hence the World Cup scoring record, being three time FIFA/World player of the year, his ridonculous scoring record for Brazil (74 in 112 games - I had to look that one up...) and on and on. His skills deserve respect regardless of his current condition (and in spite of his uhh... indiscretions... ahem... trannygate... and eating habits... which is pretty much straight MCDONALDS)
I'm sure you realize this, but comparing Cannavaro's ankle injury to major knee surgery (X3) is ludicrous. I remember an article where Fabio was worried because he had never had any major surgery prior to this recent ankle injury - the man has been quite fortunate with his health over the years. He's also tremendously driven obviously, which is probably where you're coming from...
Say what you want about Ronaldhino's paunch, but for 16M Euros he represents what is basically a risk free move for AC Milan (financially speaking, due to merchandising, etc.). The man has freakish natural ability, and it wouldn't surprise me at all to see him have a great season, in what will probably be a new lease on life for him. What I'm saying is, I would take a slightly overweight, 28 year old Ronaldhino, with something to prove, for 16M euros - in a second. Given the comfortable (i.e. Brazilian dominated) surroundings of AC Milan, the transition should be pretty smooth. Give the man 2 months, and I bet he'll be damn near cut again. In fact, if we had signed Ronaldhino, I would have danced a fucking jig, despite any potential logistical complications due to formations, current personnel, wage structure etc. I can't wait until the stadium is finished, and we can TRULY splash the cash again...