I don't know if I agree with this statement..... Having been a pitcher for many years, I have to say muscle recovery isn't a big part of pitching..... It's more the connective tissue that needs time to recover for a Pitcher (IE: Tendons and Ligaments) AAS will do lil or nothing for connective tissue recovery, unless he's using a form of Deca which will help for sure..... So, a pitcher that uses AAS might throw faster and harder due to more muscle mass, but that "edge" won't last very long if he's in for a long time.... So, your statement about Relief pitchers can be true.... The arm and shoulder get very sore after pitching a few Innings, and unless youre using Deca, I don't see that changing much.....
rizz