Victor Conte is mentioned here helping Jacobs with “oxygen modulation.” WTH is that? https://www.theguardian.com/sport/blog/2017/mar/20/gennady-golovkin-saul-alvarez-billy-joe-saunders-middleweight-boxing

There are murmurings out there that Jacobs was roided up, made worse by the fact that he missed the second weigh…