UFC 65: Bad Intentions was a mixed martial arts competition held by the Ultimate Fighting Championship on November 18, 2006 at the ARCO Arena in Sacramento, California – the UFC’s first show at this venue.

The card featured the anticipated rematch between Matt Hughes and Georges St-Pierre for the UFC Welterweight Championship – a fight originally scheduled for UFC 63. UFC 65 also featured a heavyweight title bout between Undisputed UFC Heavyweight Champion Tim Sylvia and Jeff Monson.

This event marked the last time to date that a UFC card with two non-interim title fights featured the lower weight class' title fight as the card's main event. The UFC has since decided that all cards with two title fights will always have the heavier weight class' title fight as the main event.

UFC 65's original slated main event was a championship superfight with UFC Light Heavyweight Champion Chuck Liddell defending his title against PRIDE Middleweight Champion Wanderlei Silva, a matchup UFC President Dana White announced during UFC 61 on July 8, 2006. Since then, the matchup appeared to have been postponed or cancelled because Tito Ortiz had been guaranteed a title shot at UFC 66, which was too close to UFC 65, as White stated in several interviews.

Jeffrey William Monson (born January 18, 1971) is an American mixed martial artist from Olympia, Washington. He is a 2 time winner of the ADCC Submission Wrestling World Championship, and a No Gi Brazilian Jiu Jitsu World Champion. He currently holds the Heavyweight titles in the International Sport Karate Association and the Strength & Honor Championship. He is currently affiliated with American Top Team which is based in Coconut Creek, Florida.

Monson was a Division I wrestler at Oregon State University and at the University of Illinois, and was a Pac-10 champion. He also competed at senior level at USA Wrestling events for a number of years.^{[citation needed]}

Monson is a Brazilian Jiu-Jitsu black belt and a two-time Abu Dhabi Combat Club Submission Wrestling World Champion. He is a mixed martial arts fighter and has had three professional boxing bouts. His professional boxing record is two wins and one draw.

Monson is considered to be one of the world's top submission grapplers. He is a multiple event winner at NAGA, Grapplers Quest and FILA, among other submission tournaments.^{[citation needed]} He is nicknamed "The Snowman" for his performance at the 1999 Abu Dhabi Combat Club Submission Wrestling World Championship. The Brazilian fighters at the tournament gave him the nickname because he came in as an unknown, but beat four Brazilians in a row to win the 88-98 kilogram weight class. As he went along in the tournament and continued to beat his opponents, they said he was like a snowball (white, compact, rolling and getting bigger and stronger as the tournament went on).

Timothy Deane Sylvia (born March 5, 1976) is an American professional mixed martial arts (MMA) fighter, professional wrestler, and former two-time UFC Heavyweight Champion. He trains as a member of the Miletich Fighting Systems camp and is part of the Miletich Fighting System Elite group which has had members such as former UFC champions Matt Hughes and, Jens Pulver. Sylvia was promoted to a purple belt in Brazilian Jiu-Jitsu on October 31, 2011. He holds notable wins over Andrei Arlovski (x2), Jeff Monson, Ricco Rodriguez, Paul Buentello, Brandon Vera, Jason Lambert and Ben Rothwell

Sylvia joined a karate school as a child, and began wrestling in high school. After graduation, he worked construction, community gardening, hanging sheet rock, a bouncer for Shane Reids bar, and painting houses. He was playing semi-pro football when he became interested in MMA, and began to train with Marcus Davis. During this time he decided to take up boxing and grappling. After training for a year, he got the opportunity to fight in a Rhode Island no-holds-barred amateur event, in which he knocked out his opponent in 17 seconds.

Dr. Rhadi Bullard Ferguson (April 3, 1975 - ) is an Bahamian American mixed martial arts trainer, strength and conditioning coach, motivational speaker, and black belt in judo and Brazilian jiu-jitsu.

Ferguson grew up in Miami, Florida where he began training in judo at the age of 7 under the tutelage of 7th degree red and white belt Jack Williams, until the age of 12. Ferguson had to quit judo for several years after his family had left Miami and moved to Rockville, Maryland and would not begin training again until after he finished college at age 22.

Ferguson is a four time national champion in judo. At the age of 29, Ferguson competed in judo at the 2004 Summer Olympics in Athens, Greece in the men's heavyweight division. He was previously an alternate in the 2000 Summer Olympics in Sydney, Australia.

In addition to judo, Ferguson also holds a black belt in Brazilian jiu-jitsu, and has competed in numerous jiu-jitsu and submission grappling tournaments. During his competitive career, Ferguson who stands 5 ft 9 in and weighed 225 lb. had a reported 5% body fat.

Brandon Michael Vera (born October 10, 1977) is an American mixed martial artist. He competes as a light heavyweight in the Ultimate Fighting Championship. He is the winner of the WEC 13 Heavyweight Tournament and currently resides in San Diego, California.

Vera is the son of a Filipino father, Ernesto, and an Italian-American mother, Amelia. He grew up in a family with seven boys and three girls. He was born and raised in Norfolk, Virginia, and attended Lake Taylor High School where he excelled in wrestling and earned a four-year athletic scholarship to Old Dominion University. However, he dropped out of Old Dominion after a year and a half when he felt college was not for him, and enlisted himself in the United States Air Force.

In the Air Force, Vera joined the force's wrestling team and trained at the US Olympic Training Center in Colorado Springs, Colorado. His military wrestling career was cut short in 1999 when he tore ligaments in his right elbow. Arthroscopic surgery repaired the ligaments, but he had nerve damage from the experience, causing him to be unable to use his right arm. He was released from the Air Force on a medical discharge.