The next generation of UFC stars are produced in an intense elimination tournament that separates the contenders from the pretenders.

World Heavyweight Champion Alistair "The Demolition Man" Overeem (32-11) will make his highly anticipated return to action against heavy-handed knockout artist Brett "The Grim" Rogers (10-1) in the main event of a STRIKEFORCE mixed martial arts (MMA) extravaganza at Scottrade Center in St. Louis, Mo., on Saturday, May 15. In another heavyweight confrontation, Andrei "The Pitbull" Arlovski (15-7) will clash with Antonio "Big Foot" Silva (13-2).

Strikeforce Challengers 20: Britt vs. Sayers was a mixed martial arts event held by the Strikeforce. The fourteenth Challengers episode took place on November 18, 2011 at Palms Casino Resort in Las Vegas, Nevada.

Strikeforce: Evolution was a mixed martial arts event to be held by the Strikeforce on December 19, 2009 in San Jose, California at the HP Pavilion at San Jose. The event aired live on Showtime in the US and live on SuperChannel in Canada.

Strikeforce Challengers: Gurgel vs. Evangelista was a mixed martial arts event held by the Strikeforce. The fourth Challengers episode took place on November 19, 2010, at the Jackson Convention Complex in Jackson, Mississippi.