by MMAWeekly.com Staff
The Ultimate Fighting Championship on Tuesday officially announced UFC Fight Night 19 scheduled for Sept. 16 in Oklahoma City, Okla.

The event at the Cox Convention Center features a bout pitting Nate Diaz against Melvin Guillard and the return of Roger Huerta as he squares off with Gray Maynard.

Diaz is coming off of a loss to Joe Stevenson at the recent Ultimate Fighter 9 Finale in June. Though he dropped a unanimous decision – his second straight defeat in the Octagon – Diaz’ bout with Stevenson was one of an unprecedented three Fights of the Night.

After back-to-back losses in 2007, Guillard has rebounded to win his last three fights, including a controversial split decision over Gleison Tibau at The Ultimate Fighter 9 Finale. A win over Diaz would put him well on his way to top tier fights in the UFC’s lightweight division.

Roger Huerta will be returning to the Octagon after more than a year out of action due in part to commitments to movie roles, but also due to a public spat over his contractual status with the UFC. This is the final fight on Huerta’s contract with the promotion, and it is widely believed that he will not be returning after the fight with Maynard.

While Huerta has been out of action, Maynard, a product of Xtreme Couture, has been busy building up his record to 7-0 (with one no contest). He is on the cusp of breaking into contenders bouts in the UFC’s 155-pound division, and sending Huerta unceremoniously out of the UFC would surely cement his position among top fighters in the division.

Other rumored bouts for UFC Fight Night 19, but not yet comfirmed by the UFC, include Ronnys Torres vs. Jeremy Stephens, Chris Wilson vs. Mike Pyle, and Nate Quarry vs. Tim Credeur.