By Damon Martin Luke Rockhold is tired of hearing Michael Bisping run his mouth, so he's offering an ultimatum to finally make their trilogy fight a reality.

On Saturday night, Yoel Romero and Luke Rockhold will go head-to-head in the main event of UFC 221 in Perth, Australia. 

UFC 221 goes down Saturday night in Perth, Australia, bringing an interim UFC middleweight title fight between Yoel Romero and Luke Rockhold and a high-profile heavyweight tilt between Mark Hunt and Curtis Blaydes with it. 

UFC 221 features an interim middleweight title fight between Luke Rockhold and Yoel Romero at the top of the card, and one half of that equation — Rockhold — dominates episode two of UFC 221 Embedded. 

UFC 221 goes down live Saturday night, bringing fans an interim middleweight title fight between top contenders Luke Rockhold and Yoel Romero. 

Luke Rockhold faces Yoel Romero for the interim UFC middleweight championship this Saturday night at UFC 221 in Perth, Australia, but he was bustin' skulls inside the Octagon long before this golden opportunity.

UFC middleweight Yoel Romero is a bad, bad man. 

Robert Whittaker is focused on his upcoming bout with Luke Rockhold at UFC 221, but that doesn't stop the UFC middleweight champion from wondering what might have been.

By Josh Sanchez

One would be hard pressed to find a competitor in the fight game more humble than Kelvin Gastelum.