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?
Diego Sanchez:  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. The Ultimate Fighter 1:  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 Ultimate Fighter 1