Question: Which tournament won by Diego Sanchez in the middleweight category involved mixed martial arts fighters who were trained in two separate teams by UFC Light Heavyweight fighters Chuck Liddell and Randy Couture?

Context paragraphs:
Fight Life: Fight Life is a feature-length documentary on the sport of mixed martial arts.  The film is directed by independent filmmaker James Z. Feng and produced by RiLL Films.  The film focuses on the lives of professional mixed martial arts fighters outside the cage, primarily profiling Jake Shields, and Lyle Beerbohm.  The film unveils the sport of Mixed martial arts and what it takes to be a modern-day professional fighter.  Many notables MMA stars and experts are featured in this film, including: Nick Diaz, Gilbert Melendez, Chuck Liddell, Frank Shamrock, Miesha Tate, John McCarthy, Julianna Pena, Michael Chiesa, Herschel Walker, Sam Sheridan, Mark Coleman, Tyron Woodley, Ryan Schultz, Matt Lindland, Mike Swick, and Cody McKenzie.  In 2013, "Fight Life" went on to win the Best Documentary Award at the United Film Festival.

Randy Couture vs. Chuck Liddell: Randy "The Natural" Couture vs. Chuck "The Iceman" Liddell is a mixed martial arts trilogy.  All three fights took place under Ultimate Fighting Championship in the United States.  All three fights have ended in knockout and have been for the UFC Light Heavyweight Championship.

Dan Henderson: Daniel Jeffery Henderson (born August 24, 1970) is an American former mixed martial artist and Olympic wrestler, who last competed as a middleweight in the Ultimate Fighting Championship.  He was the last Strikeforce Light Heavyweight Champion and was the last Welterweight (80 kg ) and Middleweight (95 kg ) champion of Pride Fighting Championships.  Additionally, Henderson was the Brazil Open '97 Tournament Champion, the UFC 17 Middleweight Tournament Champion, the Rings: King of Kings 1999 Tournament Champion and the Pride Weltwerweight Grand Prix Tournament Champion.  During his career, Henderson also challenged for the UFC Middleweight Championship (2x), the UFC Light Heavyweight Championship and the Strikeforce Middleweight Championship.  He was the first mixed martial artist to concurrently hold two titles in two different weight classes in a major MMA promotion.  At the time of his retirement after UFC 204, he was the oldest fighter on the UFC roster.  Known to be one of the greatest mixed martial artists of all time having defeated a total of seventeen MMA world champions across four major MMA promotions (UFC, PRIDE FC, Strikeforce, and RINGS).

Xtreme Couture Mixed Martial Arts: Xtreme Couture Mixed Martial Arts is an American mixed martial arts training organization headed by former UFC Champion and former co-founder of Team Quest, Randy Couture.  Xtreme Couture was founded with the flagship gym in Las Vegas.  Since then, the franchise has spread to other cities in the United States and Canada.  Xtreme Couture Las Vegas is one of the largest gyms (over 24000 sqft ), most recognized brands and MMA gyms in the world where many past and current top MMA fighters train.

Chuck Liddell: Charles David "Chuck" Liddell (born December 17, 1969) is an American retired mixed martial artist and former UFC Light Heavyweight Champion.  He has an extensive striking background in American Kenpo, Koei-Kan Karate, and kickboxing, as well as a grappling background in collegiate wrestling and Brazilian jiu-jitsu.  He had 23 fights in the UFC; along with Randy Couture, he is widely credited for bringing MMA into the mainstream of American sports and entertainment.  On July 10, 2009, he was inducted into the UFC Hall of Fame.

Keith Jardine: Keith Hector Jardine (born October 31, 1975) is an American actor and retired mixed martial artist.  Jardine was known for upset victories in bouts he took at short notice against highly rated fighters.  His best wins were in contests with former UFC Light Heavyweight Champions and UFC Hall of Famers Chuck Liddell and Forrest Griffin.  Jardine's unorthodox attacking style wrongfooted opponents, but left him vulnerable in some career-crucial contests, and by his mid 30's he had effectively retired from competing to concentrate on a 'Paleo' business venture.  Building on experience as a stuntman and in non-speaking parts, Jardine has established himself as an actor in film and television.

Diego Sanchez: Diego Sanchez (born December 31, 1981) is an American professional mixed martial artist currently competing in the Lightweight division of the Ultimate Fighting Championship.  A professional competitor since 2002, he has also formerly competed for King of the Cage, where he was the Welterweight Champion, and also won the Middleweight tournament of The Ultimate Fighter 1.

Frank Shamrock: Frank Shamrock (born Frank Alisio Juarez, III; December 8, 1972) is an American former mixed martial artist.  Shamrock was the first to hold the UFC Middleweight Championship (later renamed the UFC Light Heavyweight Championship) and retired as the four-time defending undefeated champion.  Shamrock was the No. 1 ranked pound for pound UFC fighter in the world during his reign as the UFC Middleweight Champion.  Shamrock has won numerous titles in other martial arts organizations, including the interim King of Pancrase title, the WEC Light Heavyweight Championship and the Strikeforce Middleweight Championship.

The Ultimate Fighter 1: The debut season of The Ultimate Fighter (later designated The Ultimate Fighter 1) premiered on January 17, 2005.  Sixteen mixed martial arts fighters (eight Light Heavyweights weighing from 186 to 205 lbs and eight Middleweights weighing from 171 to 185 lbs) were invited to participate in the show where they would reside together and train in two separate teams coached by UFC Light Heavyweight fighters Chuck Liddell and Randy Couture.  The teams would compete in physical challenges, segments hosted by singer Willa Ford, to determine which team would have the right to pair one of their own fighters against an opponent of their choice in the same weight class, with the loser being eliminated.

Randy Couture: Randall "Randy" Duane Couture ( ; born June 22, 1963) is an American actor, retired United States Army Sergeant, retired mixed martial artist and former collegiate and Greco-Roman wrestler.  During his tenures in the Ultimate Fighting Championship (UFC), Couture became a three-time UFC Heavyweight Champion, two-time UFC Light Heavyweight Champion, an interim UFC Light Heavyweight Champion and the UFC 13 Heavyweight Tournament Winner.  Couture is the first of only three fighters to hold two UFC championship titles in two different divisions (along with B.J. Penn and Conor McGregor).

Supporting paragraphs: Diego Sanchez The Ultimate Fighter 1
Answer: The Ultimate Fighter 1