After much speculation about how Conor McGregor's anticipated return to the octagon would come to fruition given the standards of the anti-doping agreement, USADA declared its relationship with UFC had become “untenable,” and negotiations around a new deal fizzled.
It's unknown whether the UFC will sign with a new anti-doping partner or return to commission oversight. Regardless, the UFC-USADA deal has hit its shelf life after eight years.
The news came as a stunner to many fighters, who shared their reactions on social media. Check them out below.