Nowt to prove
The practicality of sending piss and hair samples, before and after shots and a caliper test of my bodyfat verified by an impartial person probably isn't worth it either
The fact is that it takes balanced, simple but smart training/nutrition, a lot of hard graft and above all consistency and time.
The average bloke doesn't have a lot of those qualities (relative to a professional athlete) or luxuries so you can't really use joe public as a reference point when talking about an elite athlete.
Doesn't mean that Joshua is clean, but gaining 20lbs on a massive frame in two years isn't a smoking gun for me, there are plenty of tells to look for, this isn't one of them.
Usually 24 you're only just hitting your physical peak.
Bookmarks