Adesanya looks to continue his meteoric rise to superstardom, while Costa aims to derail the hype train and secure his first UFC championship.
The stage is set for the biggest middleweight bout of the year, where only one man can remain unbeaten.
Additional bouts added to the highly anticipated match up between Adesanya and Costa are as follows:
Kai "Don't Blink" Kara-France (21-8-0, fighting out of Auckland, New Zealand) will face no.10 franked flyweight, Brandon "Raw Dawg" Royval (11-4-0, fighting out of Littleton, Colorado)
Brad "Quake" Riddell (8-1-0, fighting out of Auckland, New Zealand) takes on Alex "Leko" Da Silva (21-2-0, fighting out of Santa Catarina, Brazil)
Shane Young (13-4-0, fighting out of Auckland, New Zealand) will make his return to the Octagon against Nate "The Train" Landwehr (14-3-0, fighting out of Clarksville, Tennessee)
Melbourne's Jake "The Celtic Kid" Matthews (16-4-0, fighting out of Melbourne, Australia) will join the boys and take on Diego "Nightmare" Sanchez (30-12-0, fighting out of Albuquerque, New Mexico)