Chael with elevated test levels almost got a decision against Silva with broken rib and got finished in round 5.
Therefore Chael without elevated test levels will lose a decision or get finished by Silva with broken rib.
Chael without elevated test levels against healthy Silva, Chael will get dominated, finished, broken or any of the above.
Com on, the guy barely took a decision from Michael Bisping in his last fight. He looked worse than he did in his previous fights such as Okami, Silva or Stann, so his stamina and strength is on a decline and his skills are stagnant over the last 2 years.
I really don't see him finishing Silva or keeping him on his back without horse steroids that he gets from Dan Henderson. Oh and yeah those roids are a major contributing factor why Dan Henderson can still compete at a high level. Take them away or upset the hormanal balance a bit and Hendo gets crushed by Shields.