Hahaha, I am fond of how Jon Jones fight and because of his fighting style and surely enough Jones's head is getting bigger now that he is pretty well known in the industry of UFC and that Turinabol issue is pretty sure, not acceptable I don't know but I am seeing him in a state of just beginning his career but a successful one in doing his kicking forte,
I am giving him the benefit of the doubt as he is a wild party person and he might have consumed anything during those wild parties as the traces found in his system were minute and even the commission said that it will not aide him in any way and hopefully he stopped doing those reckless things but continues to drink alcohol which is not good for an athlete and it might have an affect on him as he ages.
Dominick Reyes is a skillful guy that Jon Jones may have a hard time with him indeed he can surely adapt to the opponent fighting style and can bring an outburst of punches and if Reyes would see an opening he will surely take it.
Anyone challenging for the belt had a dream run of tough competition and Dominick Reyes is the most promising fighter and he does have the confidence of an undefeated fighter but still going with Jon Jones because of his skills to out perform his opponent every fight.
He surely needs to stop the intake of alcohol and once he had a match on schedule I think he needs to truly stop drinking for once, that Turbinol might be apart when he is really partying hard, and just as you have said he is an athlete so he should really stop drinking so much it will surely consume his body if not today it will be in the future,
Dominick Reyes really isn't a pushover, in my opinion, that is why Jon Jones needs to take extra precaution in taking him head-on, that undefeated title really gives him the confidence in going on to still retain that unstained moniker.