It just can't be a mistake and he can't get out of this one IMO. Like just nothing he should have consumed should have been dodgy and I would honestly just reckon he had an injury and risked it or he is just addicted/so scared of losing that he is that stupid.
So pissed off...was great to see him back and was buzzing at the idea of him vs Lesnar. What a cheat
I suppose there's a very slight possibility that he had a supplement spiked with illegal stuff somewhere in his stack (much more common thing than most people would think), but I can't believe his team would let something like that happen given Jon's history. This whole thing is just so depressing.
What about that fight though? I'm going to refrain from spoilers in this post in case you somehow don't know the result yet, but damn, it was definitely much more exciting than I thought it was going to be.