The Octagon heads south of the border to Mexico this Saturday night for UFC Fight Night 78.

Set from the Arena Monterrey in Monterrey, Mexico, the main event features a welterweight contest between Kelvin Gastelum and Neil Magny. Originally, Gastelum was to face Matt Brown, but a training injury sidelined Brown.

Also, Ricardo Lamas battles Diego Sanchez, Jussier Formiga faces off with Henry Cejudo in a key flyweight showdown and Efrain Escudero takes on Leandro Silva.

The main card and four prelims air on FOX Sports 1 after early prelims on UFC Fight Pass.

Below is the current lineup:

MAIN CARD (FOX Sports 1/10 p.m. ET)

Welterweight: Kelvin Gastelum vs. Neil Magny

Featherweight: Diego Sanchez vs. Ricardo Lamas

Flyweight: Henry Cejudo vs. Jussier Formiga

Lightweight: Efrain Escudero vs. Leandro Silva

PRELIMINARY CARD (FOX Sports 1/8 p.m. ET)

Bantamweight: Erik Perez vs. Taylor Lapilus

Welterweight: Hector Urbina vs. Bartosz Fabinski

Bantamweight: Scott Jorgensen vs. Alejandro Perez

Featherweight: Andre Fili vs. Gabriel Benitez

PRELIMINARY CARD (UFC Fight Pass/6:45 p.m. ET)

Lightweight: Valmir Lazaro vs. Michel Prazeres

The Ultimate Fighter: Latin America 2 Lightweight Final
Enrique Barzola vs. Horacio Gutierrez

The Ultimate Fighter: Latin America 2 Welterweight Final
Erick Montano vs. Enrique Marin

Welterweight: Vernon Ramos vs. Alvaro Herrera