Gary A. Vasquez-USA TODAY Sports
Retired mixed martial artist Daniel Cormier tested positive for the coronavirus over a month before his UFC 252 bout against Stipe Miocic in August, the former fighter confirmed to SI's Justin Barrasso.
The positive diagnosis came a few days after Cormier's teammate tested positive for COVID-19. The former two-division world champion initially tested negative on July 3 but felt sick and fatigued as days progressed. On July 8, he was found to have the coronavirus.
One piece of equipment Cormier used to track his resting heart rate and body temperature, which helped lead him get retested, was his Oura ring.