According to MMAjunkie, both fighters have agreed to the bout and official agreements are expected to be finalized shortly.
After compiling a 4-0 record, Duffee (5-0) remained undefeated in his UFC debut in August with a UFC record 7-second knockout of Tim Hague at UFC 102.
Buentello (24-10) returns to the UFC after going 5-1 while fighting for Strikeforce and Affliction after the leaving the UFC following a 3-1 stint with the UFC between 2005 and 2006. “The Headhunter” has won his last two fights over Gary Goodridge and Kirill Sidelnikov.
UFC 107 is headlined by lightweight champ BJ Penn vs. Diego Sanchez and also features Frank Mir vs. Cheick Kongo and Kenny Florian vs. Clay Guida.