UFC On FX 8 is really starting to take shape. A new lightweight bout between Francisco Trinaldo and Mike Rio been added to the card. Trinaldo is 2-1 in the UFC and is coming off of a win over CJ Keith via submission. Rio is looking to add to his first UFC win over John Cofer at the The Ultimate Fighter 16 Finale.
The show takes place on on May 18 at Arena Jaragua in Santa Catarina, Brazil. Middleweights Vitor Belfort and former Strikeforce Champion Luke Rockhold will meet in the main event.