UFC 109: Relentless
UFC 109: Relentless was a mixed martial arts event held by the Ultimate Fighting Championship (UFC) on February 6, 2010 at the Mandalay Bay Events Center in Las Vegas, Nevada.
- Genre:
- Director: Anthony "Pasquale" Giordano
- Cast: Randy Couture, Mark Coleman, Chael Sonnen, Nate Marquardt, Paulo Thiago
- Country: