source | MMAFighting.com
Wanderlei Silva was pulled from his scheduled UFC 175 grudge match against Chael Sonnen due to a failure to submit an application to fight in the state of Nevada, as well as his refusal to undergo a random drug test, sources told MMAFighting.com.
In addition, according to sources, both Silva and Sonnen were asked to undergo random drug tests while in Nevada last week for UFC 173. Sonnen complied with the request, however when asked to do the same, Silva refused.
According to Bennett, Vitor Belfort, who replaced Silva on UFC 175’s pay-per-view lineup on Wednesday, submitted an application to fight in the state of Nevada last week.
“Due to issues related to Wanderlei Silva’s licensing in the state of Nevada, the UFC was forced to seek a replacement opponent to face Chael Sonnen at UFC 175 on Saturday, July 5 in Las Vegas. Former UFC champion Vitor Belfort has accepted the fight with Sonnen, subject to Belfort receiving a license to compete from the Nevada Athletic Commission”