**IMO** brock doesn't have enough time to cycle his steroids and gain his strength and muscle back.
When you get as big as he was you can't just sit in a hospital bed and keep all that massive slabs of muscle size. I bet brock has already lost a ton of muscle mass.
Mir is probably juicing right now, and he is smart to do so. If u look at him in his last fight he basically gained 20 lbs of muscle and got leaner, since the btock fight. That isn't the way the body works, you only get those type of gains when you cycle, unless you are a complete newbie to lifting weights which mir isn't.
Although I do believe in muscle memory and do believe if brock starts lifting and cycling again he will gain it back very fast, i still don't think he will be ready to fight in 1- 1.5 years.
and if I upset anyone about the roids comments, I really don't care it's my opinion
