Bad blood will be spilled as the most heated rivalry in the UFC comes to a head in the main event of UFC 272 on Saturday, March 5.

Former interim welterweight champion Colby Covington and BMF champion Jorge Masvidal were once like brothers. Good friends, teammates and training partners at Florida gym American Top Team, the pair were almost inseparable as they made their way up the UFC’s welterweight division.

But, after a falling out between the pair over non-payment to a coach, the two have become bitter rivals and, after years of jabbing at each other on social media and in interviews, the pair will finally face off in a five-round main event clash at T-Mobile Arena.

It’s a matchup that pits two of the best 170 pounders in the world head to head, with bragging rights on the line as they look to settle their beef inside the eight walls of the octagon.

Ahead of the matchup, check out the UFC’s pre-fight film, UFC 272 Countdown, which tells the pre-fight story of the bout, with opinions from both fighters and their teams.