UFC 146: dos Santos vs. Mir was a mixed martial arts (MMA) pay-per-view event (PPV) promoted by the Ultimate Fighting Championship (UFC) on May 26, 2012 at the MGM Grand Garden Arena in Las Vegas, Nevada. The main card featured five MMA bouts which were shown on PPV, as well as seven preliminary bouts which were shown on FX, and Facebook. This was the first time in UFC history that the main card featured all heavyweight bouts.
Junior dos Santos
Frank Mir
Cain Velasquez
Antonio Silva
Roy Nelson
Dave Herman
Stipe Miocic
Shane Del Rosario
Stefan Struve
Lavar Johnson
Darren Elkins
Diego Brandao
Jamie Varner
Edson Barboza
C.B. Dollaway
Jason Miller
Dan Hardy
Duane Ludwig
Paul Sass
Jacob Volkmann
Glover Teixeira
Kyle Kingsbury
Mike Brown
Daniel Pineda