Sharp observation. Hard to say. It could be the angle or a little too much correction of his upperbody to compensate his foot stance. I don't think it's scoliosis, you can't perform heavy deads with that.
Alex Federov had something similar, except his was back asymmetry....it was detailed, yet looked like Picasso drew it on one of his "happy" days.
LOL, you should write bodybuilding related poetryThis pic confirms that his erector, lats, rhombs, teres m. & traps are asymmetric. It's also easy to notice when someone makes a christmas tree
who in their right mind would post something like this?