Stefan Struve has been tapped to fight a returning Paul Buentello on the main card of UFC 107 on December 12 in place of injured up-and-comer Todd Duffee, who withdrew from the fight last week due to an undisclosed injury.

After dropping his UFC debut to Junior dos Santos in February, Struve (18-3) has rebounded with back-to-back wins inside the Octagon over Denis Stojnic and Chase Gormley.

Buentello (24-10) returns to the UFC after going 3-1 in Strikforce and most-recently earning wins in Affliction over Gary Goodridge and Kirill Sidelnikov.

UFC 107, which takes place at the FedEx Forum in Memphis, Tennessee, is headlined by lightweight champ BJ Penn vs. Diego Sanchez and also features Cheick Kongo vs. Frank Mir and Kenny Florian vs. Clay Guida.