I would think that a Diaz fan would be hopeful given the nature of the fight.
1. Anderson is 39 years old and coming off of two fights where he was knocked down, knocked out, and had his leg broken.
2. 39 year olds are not known for their cardio.
3. Diaz has amazing cardio and doesn't get finished almost ever.
4. This will be a 5 round fight.
5. Silva's strength will not totally neutralize Diaz's strengths (swarming, combination punching)
So Silva will be in a fight with a fighter who is younger, has better cardio, and is hard to finish. Can Silva out strike Diaz for 5 rounds? Can he hobble him with leg kicks? Can he finish him? The old Anderson could potentially do all of those things. 39 year old Anderson who got the shit kicked out of him two fights in a row might not be able to. I guess it's a good thing for Anderson that Diaz has been out for almost two years. I don't think that will mean much for Diaz's cardio, but maybe he won't be so sharp on the feet.