But what if he changes his combination right now, pretty sure that a fighter of his caliber could be able to do a mix up or a different combo string to surprise Silva plus those combinations that he did back then was pretty effective so it's not like his mundane combination is going to be a liability, if he delivers just right, that said combination might be his win.
If he's still young I tend to agree with you, but he's already 46 years old and it's father time as he matured. I wouldn't expect anything for old people with no experience, I say no experience because he never in boxing before... he's a MMA fighter. I believe he will just play safely and play with strategy he more comfortable.
I'm a fan of Silva on his prime because his reflex and counter attack is very accurate but multiple injuries really slow him down and make him very cautious on his match. I believe Silva will win if they are fighting on both there prime but on there current condition is a different story. Ortiz has a chance on this if the fight will always be an inside fight.
I don't think so, the serious injuries he had was 7 years ago when he break his leg. But this is boxing not muay thai or kickboxing... so it's not really a problem, Silva is still prime with his current condition and age right now.