I just don't think the thing on his stomach is an injection mark, to me it looks like what i have, which i'm not sure what it is, but it feels a bit as if the tissue is very thin there and the intestines push against it, lol.
Other than on his stomach, does he have other things on his body which to you look like injection marks? because i never found any, though i could obviously have missed something.
I always thought the only thing that made GSP look *a bit* suspect, was his physique, but then again the in-cage lighting, sweat and inevitably getting a bit of a pump during fighting make fighters look far crazier inside the cage than outside and under normal circumstances.
Anyways, in case GSP ever admitted to using PEDs, i'm not sure if i can hold it against him too much (aside from saying he's clean, because saying he wanted them to get banned in a scenario where he was on them still isn't necessarily hypocritical, as he could've been willing to use them as long as they're rampant, but generally would've loved to compete in a clean sport much more) as many of his opponents probably have used something too (some of those popped as well, IIRC.)
For this reason, i also don't give Silva too much shit for him popping, at least does it not really taint his legacy much imo, which was cemented pre-USADA.