Neil Magny confirms out of UFC Rochester due to failed USADA drug test; UFC confirms his replacement

Neil Magny was seen withdrawn from UFC Rochester co-main event earlier this week with undisclosed reasons, leaving minds wondering why?
Nevertheless, today Neil Magny issued a statement on his Instagram, detailing the reason of his withdrawal from UFC Rochester and more. See his Instagram post below:

Neil Magny issues statement on his Instagram

UFC has managed to find a replacement for Neil Magny, who will face Luque Vincent on Saturday. That replacement is Derrick Krantz (23-10), highly popular fighter from LFA, Legacy FC And Bellator, yet to make his UFC debut.
Derrick was supposed to fight at the Tuesday night contender series, however he’ll be getting a quick pass shortcut straight to the co-main event on ESPN+.