The 10 UFC athletes tested most by USADA in 2023

Kamaru Usman – 20

Kamaru Usman. Photo via UFC (Twitter)

Former welterweight champion Kamaru Usman has also been tested 20 times in 2023.

”The Nigerian Nightmare” had a rough year as a fighter.

At UFC 286 in March, he lost the title fight rematch against Leon Edwards via a majority decision. In October he acted as a short-notice replacement against Khamzat Chimaev in the co-main event of UFC 294 in Abu Dhabi. Usman fought well but again lost via majority decision.