UFC 36: Worlds Collide was a mixed martial arts event held by the Ultimate Fighting Championship at the MGM Grand Arena in Las Vegas, Nevada on March 22, 2002.

[2] The event was seen live on pay per view in the United States, and later released on home video.

Miletich decided to concentrate on training his fighters, including Matt Hughes who was now the UFC champion in Pat's preferred weight class.

[3] However, Silva had signed a contract with PRIDE Fighting Championships.

[3] Barnett defeated Couture via TKO (strikes) at 4:32 of the second round to become the new UFC Heavyweight Champion.